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[RFC PATCH 2/7] virtio: use pr_debug_ratelimited to avoid flooding

by Jim Cromie

When I test dynamic-debug's static-key toggling performance in a virtme-ng session, it is too easy to create an enormous flood of printks to the console. #> echo +p > /proc/dynamic_debug/control #> echo -p > /proc/dynamic_debug/control Now theres no "good reason" to shoot your own foot, but this is also easy to fix, by ratelimiting the sources of the flood. I don't think theres a loss of utility to virtio. Example console output is below the snip. For this test-case, ratelimiting suppresses >900k callbacks. It also allows this simple load test for the static-key toggling performance in a following patch. Signed-off-by: Jim Cromie <jim.cromie(a)gmail.com> --- root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# ddcmdq -p [ 619.868567] dyndbg: query 0: "-p" mod:* Delta-CAL (IPI): 71 - above is a noop baseline. root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# ddcmdq +p [ 648.876520] dyndbg: query 0: "+p" mod:* [ 648.878263] dyndbg: match on module: led_class [ 648.878350] dyndbg: match on module: probe [ 648.878474] dyndbg: match on module: pci [ 648.878636] dyndbg: match on module: pci_driver [ 648.878743] dyndbg: match on module: irq [ 648.878845] dyndbg: match on module: setup_bus [ 648.879032] dyndbg: match on module: pcieportdrv [ 648.879139] dyndbg: match on module: bwctrl [ 648.879197] dyndbg: match on module: aspm [ 648.879241] dyndbg: match on module: slot [ 648.879328] dyndbg: match on module: pci_acpi [ 648.879431] dyndbg: match on module: quirks [ 648.879521] dyndbg: match on module: pci_hotplug [ 648.879576] dyndbg: match on module: vgaarb [ 648.879710] dyndbg: match on module: backlight [ 648.879826] dyndbg: match on module: fb [ 648.879900] dyndbg: match on module: tables [ 648.880012] dyndbg: match on module: acpi [ 648.880977] dyndbg: match on module: ac [ 648.881021] dyndbg: match on module: button [ 648.881097] dyndbg: match on module: fan [ 648.881196] dyndbg: match on module: video [ 648.881295] dyndbg: match on module: processor [ 648.881558] dyndbg: match on module: thermal_lib [ 648.881671] dyndbg: match on module: thermal [ 648.881784] dyndbg: match on module: srat [ 648.881860] dyndbg: match on module: battery [ 648.881938] dyndbg: match on module: acpi_x86 [ 648.882088] dyndbg: match on module: pnp [ 648.882219] dyndbg: match on module: dmaengine [ 648.882351] dyndbg: match on module: virt_dma [ 648.882429] dyndbg: match on module: acpi_dma [ 648.882518] dyndbg: match on module: dw_dmac_core [ 648.882619] dyndbg: match on module: virtio_ring [ 648.882833] dyndbg: match on module: tty_io [ 648.882835] virtqueue_get_buf_ctx_split: 852672 callbacks suppressed [ 648.882836] No more buffers in queue [ 648.882837] virtqueue_add_split: 4962 callbacks suppressed [ 648.882838] Added buffer head 0 to 00000000531af360 [ 648.882842] No more buffers in queue [ 648.882843] No more buffers in queue [ 648.882843] No more buffers in queue [ 648.882844] No more buffers in queue [ 648.882844] No more buffers in queue [ 648.882845] No more buffers in queue [ 648.882845] No more buffers in queue [ 648.882846] No more buffers in queue [ 648.882846] No more buffers in queue [ 648.882857] Added buffer head 0 to 00000000531af360 [ 648.882869] Added buffer head 0 to 00000000531af360 [ 648.882874] vring_interrupt: 88637 callbacks suppressed [ 648.882876] virtqueue interrupt with no work for 00000000e20c0e9d [ 648.882882] Added buffer head 0 to 00000000531af360 [ 648.882899] Added buffer head 0 to 00000000531af360 [ 648.882909] Added buffer head 0 to 00000000531af360 [ 648.882919] Added buffer head 0 to 00000000531af360 [ 648.882930] Added buffer head 0 to 00000000531af360 [ 648.882941] Added buffer head 0 to 00000000531af360 [ 648.882951] Added buffer head 0 to 00000000531af360 [ 648.883860] virtqueue interrupt with no work for 00000000531af360 [ 648.883920] virtqueue interrupt with no work for 0000000088284d45 [ 648.883980] virtqueue interrupt with no work for 000000006b8c4aa3 [ 648.884033] virtqueue interrupt with no work for 00000000f205a9b7 [ 648.884085] virtqueue interrupt with no work for 0000000021930e68 [ 648.884138] virtqueue interrupt with no work for 0000000081dad94c [ 648.884190] virtqueue interrupt with no work for 0000000097d16d2d [ 648.884243] virtqueue interrupt with no work for 00000000b4539010 [ 648.884296] virtqueue interrupt with no work for 00000000ac870038 [ 648.884418] dyndbg: match on module: tty_jobctrl [ 648.884476] dyndbg: match on module: vt_ioctl [ 648.884528] dyndbg: match on module: serial_base [ 648.884625] dyndbg: match on module: 8250 [ 648.884698] dyndbg: match on module: 8250_base [ 648.884795] dyndbg: match on module: 8250_exar [ 648.884856] dyndbg: match on module: 8250_pci [ 648.884962] dyndbg: match on module: 8250_pericom [ 648.885014] dyndbg: match on module: virtio_console [ 648.885091] dyndbg: match on module: iommu [ 648.885132] dyndbg: match on module: init [ 648.885174] dyndbg: match on module: ppr [ 648.885216] dyndbg: match on module: iommu [ 648.885256] dyndbg: match on module: dmar [ 648.885334] dyndbg: match on module: iommu [ 648.885419] dyndbg: match on module: virtio_iommu [ 648.885481] dyndbg: match on module: drm [ 648.885577] dyndbg: match on module: ttm [ 648.885651] dyndbg: match on module: component [ 648.885756] dyndbg: match on module: core [ 648.885979] dyndbg: match on module: bus [ 648.886081] dyndbg: match on module: dd [ 648.886238] dyndbg: match on module: syscore [ 648.886339] dyndbg: match on module: class [ 648.886429] dyndbg: match on module: platform [ 648.886519] dyndbg: match on module: faux [ 648.886567] dyndbg: match on module: main [ 648.886664] dyndbg: match on module: wakeup [ 648.886765] dyndbg: match on module: firmware_class [ 648.886925] dyndbg: match on module: regmap [ 648.886971] dyndbg: match on module: regcache [ 648.887089] dyndbg: match on module: regcache_flat [ 648.887142] dyndbg: match on module: regmap_debugfs [ 648.887195] dyndbg: match on module: mei [ 648.887914] dyndbg: match on module: mei_me [ 648.888149] dyndbg: match on module: dax [ 648.888267] dyndbg: match on module: dma_buf [ 648.888322] dyndbg: match on module: scsi_mod [ 648.888413] dyndbg: match on module: virtio_scsi [ 648.888486] dyndbg: match on module: libata [ 648.888736] dyndbg: match on module: ahci [ 648.888816] dyndbg: match on module: libahci [ 648.888895] dyndbg: match on module: ata_piix [ 648.888960] dyndbg: match on module: pata_amd [ 648.889050] dyndbg: match on module: pata_oldpiix [ 648.889124] dyndbg: match on module: pata_sch [ 648.889172] dyndbg: match on module: mdio_bus [ 648.889229] dyndbg: match on module: libphy [ 648.889303] dyndbg: match on module: realtek [ 648.889395] dyndbg: match on module: fwnode_mdio [ 648.889468] dyndbg: match on module: virtio_net [ 648.889697] dyndbg: match on module: pcmcia_core [ 648.889848] dyndbg: match on module: pcmcia [ 648.890263] dyndbg: match on module: pci_quirks [ 648.890322] dyndbg: match on module: i8042 [ 648.890355] dyndbg: match on module: libps2 [ 648.890441] dyndbg: match on module: input_core [ 648.890546] dyndbg: match on module: ff_memless [ 648.890670] dyndbg: match on module: atkbd [ 648.890724] dyndbg: match on module: psmouse [ 648.890981] dyndbg: match on module: rtc_core [ 648.891135] dyndbg: match on module: rtc_cmos [ 648.891242] dyndbg: match on module: i2c_boardinfo [ 648.891303] dyndbg: match on module: i2c_core [ 648.891519] dyndbg: match on module: i2c_smbus [ 648.891624] dyndbg: match on module: i2c_i801 [ 648.891757] dyndbg: match on module: pps_core [ 648.891925] dyndbg: match on module: power_supply [ 648.892085] dyndbg: match on module: hwmon [ 648.892129] dyndbg: match on module: thermal_sys [ 648.892260] dyndbg: match on module: therm_throt [ 648.892315] dyndbg: match on module: md_mod [ 648.892570] dyndbg: match on module: dm_mod [ 648.892696] dyndbg: match on module: sysfs [ 648.892741] dyndbg: match on module: dmi_scan [ 648.892787] dyndbg: match on module: qemu_fw_cfg [ 648.892889] dyndbg: match on module: esrt [ 648.892935] dyndbg: match on module: mailbox [ 648.893006] dyndbg: match on module: pcc [ 648.893051] dyndbg: match on module: nvmem_core [ 648.893103] dyndbg: match on module: snd [ 648.893191] dyndbg: match on module: snd_timer [ 648.893249] dyndbg: match on module: snd_pcm [ 648.893356] dyndbg: match on module: snd_seq [ 648.893514] dyndbg: match on module: snd_intel8x0 [ 648.893572] dyndbg: match on module: snd_ac97_codec [ 648.893667] dyndbg: match on module: snd_hda_core [ 648.893867] dyndbg: match on module: snd_intel_dspcfg [ 648.894017] dyndbg: match on module: snd_intel_sdw_acpi [ 648.894131] dyndbg: match on module: snd_hda_codec [ 648.894336] dyndbg: match on module: snd_hda_codec_realtek_lib [ 648.894479] dyndbg: match on module: snd_hda_codec_alc269 [ 648.894585] dyndbg: match on module: snd_hda_scodec_component [ 648.894655] dyndbg: match on module: snd_hda_codec_generic [ 648.894775] dyndbg: match on module: snd_hda_intel [ 648.894939] dyndbg: match on module: sock [ 648.894987] dyndbg: match on module: dev [ 648.895119] dyndbg: match on module: sch_api [ 648.895174] dyndbg: match on module: route [ 648.895215] dyndbg: match on module: ip_fragment [ 648.895264] dyndbg: match on module: ip_output [ 648.895313] dyndbg: match on module: tcp [ 648.895350] dyndbg: match on module: tcp_input [ 648.895468] dyndbg: match on module: tcp_output [ 648.895575] dyndbg: match on module: tcp_timer [ 648.895634] dyndbg: match on module: tcp_ipv4 [ 648.895687] dyndbg: match on module: tcp_cong [ 648.895743] dyndbg: match on module: tcp_fastopen [ 648.895796] dyndbg: match on module: tcp_recovery [ 648.895854] dyndbg: match on module: udp [ 648.895951] dyndbg: match on module: arp [ 648.895994] dyndbg: match on module: icmp [ 648.896096] dyndbg: match on module: devinet [ 648.896151] dyndbg: match on module: fib_trie [ 648.896250] dyndbg: match on module: ping [ 648.896409] dyndbg: match on module: sysctl_net_ipv4 [ 648.896505] dyndbg: match on module: ipconfig [ 648.896567] dyndbg: match on module: tcp_cubic [ 648.896625] dyndbg: match on module: ip6_checksum [ 648.896718] dyndbg: match on module: sysctl_net [ 648.896832] dyndbg: match on module: i386 [ 648.896886] dyndbg: match on module: mmconfig_shared [ 648.896944] dyndbg: match on module: fixup [ 648.897029] dyndbg: match on module: acpi [ 648.897087] dyndbg: match on module: irq [ 648.897185] dyndbg: match on module: decompress [ 648.897253] dyndbg: match on module: kobject [ 648.897366] dyndbg: match on module: kobject_uevent [ 648.897478] dyndbg: applied queued updates to 1900 sites in total [ 648.897586] applying 1879 queued jump_labels [ 648.898378] virtqueue callback for 00000000b8493952 (000000004941ab6e) [ 648.898493] virtio_fs_send_req: opcode 5 unique 0x45a0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.898493] virtio_fs_send_req: opcode 5 unique 0x459e nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.898582] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.898752] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.898905] virtio_fs_send_req: opcode 5 unique 0x45a2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.898912] virtio_fs_send_req: opcode 5 unique 0x45a4 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899066] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899183] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899276] virtio_fs_send_req: opcode 5 unique 0x45a6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899281] virtio_fs_send_req: opcode 5 unique 0x45a8 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899413] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899528] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899608] virtio_fs_send_req: opcode 5 unique 0x45ac nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899608] virtio_fs_send_req: opcode 5 unique 0x45aa nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.899711] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.899850] virtqueue callback for 00000000531af360 (00000000df837aee) [ 648.899957] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.899989] virtio_fs_send_req: opcode 5 unique 0x45ae nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.899992] virtio_fs_send_req: opcode 5 unique 0x45b0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.900080] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.900084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.900520] virtio_fs_send_req: opcode 5 unique 0x45b2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.900557] virtio_fs_send_req: opcode 5 unique 0x45b4 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.900725] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.901958] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.902056] virtio_fs_send_req: opcode 5 unique 0x45b6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.902069] virtio_fs_send_req: opcode 14 unique 0x45b8 nodeid 0x245 in.len 48 out.len 16 queue_id 1 [ 648.902292] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.902409] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.902506] virtio_fs_send_req: opcode 5 unique 0x45ba nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.902507] overlayfs: open(00000000cc553079[bin/grep/l], 0100040) -> (00000000ebc0a9b2, 01100040) [ 648.902707] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.902793] virtio_fs_send_req: opcode 5 unique 0x45bc nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.902861] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903071] virtio_fs_send_req: opcode 14 unique 0x45be nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.903072] virtio_fs_send_req: opcode 5 unique 0x45c0 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.903325] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.903329] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903546] overlayfs: open(0000000044db1ed7[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000ce7f73a3, 01100040) [ 648.903629] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.903800] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.903896] virtio_fs_send_req: opcode 5 unique 0x45c2 nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.903921] virtio_fs_send_req: opcode 14 unique 0x45c4 nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.904123] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.904252] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.904382] overlayfs: open(0000000044db1ed7[/ld.so.cache/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.904421] virtio_fs_send_req: opcode 5 unique 0x45c6 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.904521] virtio_fs_send_req: opcode 25 unique 0x45c8 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.904698] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.904849] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.904982] virtio_fs_send_req: opcode 5 unique 0x45ca nodeid 0x2f2 in.len 40 out.len 4095 queue_id 1 [ 648.905003] virtio_fs_send_req: opcode 5 unique 0x45cc nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.905214] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.905333] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.905469] virtio_fs_send_req: opcode 14 unique 0x45ce nodeid 0x2f3 in.len 48 out.len 16 queue_id 1 [ 648.905476] virtio_fs_send_req: opcode 5 unique 0x45d0 nodeid 0x4b in.len 40 out.len 4095 queue_id 1 [ 648.905672] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.905803] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.905910] overlayfs: open(00000000b23a5ecd[bin/gawk/l], 0100040) -> (0000000042a63553, 01100040) [ 648.905918] virtio_fs_send_req: opcode 14 unique 0x45d2 nodeid 0x4c in.len 48 out.len 16 queue_id 1 [ 648.906095] virtio_fs_send_req: opcode 5 unique 0x45d4 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.906255] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.906359] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.906486] overlayfs: open(0000000044db1ed7[lib64/libpcre2-8.so.0.15.0/l], 0100000) -> (00000000761f1272, 01100000) [ 648.906498] virtio_fs_send_req: opcode 14 unique 0x45d6 nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.906653] virtio_fs_send_req: opcode 25 unique 0x45d8 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.906842] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.906929] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907050] overlayfs: open(000000001dc27c49[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000cb9765b4, 01100040) [ 648.907060] virtio_fs_send_req: opcode 5 unique 0x45da nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.907329] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.907428] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907453] virtio_fs_send_req: opcode 14 unique 0x45dc nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.907633] virtio_fs_send_req: opcode 14 unique 0x45de nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.907709] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.907848] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.907943] overlayfs: open(0000000044db1ed7[lib64/libc.so.6/l], 0100000) -> (000000003b97b39b, 01100000) [ 648.907943] overlayfs: open(000000001dc27c49[/ld.so.cache/l], 0100000) -> (00000000fce78bd3, 01100000) [ 648.908091] virtio_fs_send_req: opcode 25 unique 0x45e0 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.908169] virtio_fs_send_req: opcode 25 unique 0x45e2 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.908341] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.908447] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.908581] virtio_fs_send_req: opcode 5 unique 0x45e4 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.908724] virtio_fs_send_req: opcode 18 unique 0x45e6 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.908776] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.908895] virtio_fs_send_req: opcode 14 unique 0x45e8 nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.908956] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.909155] virtio_fs_send_req: opcode 5 unique 0x45ea nodeid 0x2f4 in.len 40 out.len 4095 queue_id 1 [ 648.909156] overlayfs: open(0000000044db1ed7[locale/locale-archive/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.909346] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.909427] virtio_fs_send_req: opcode 25 unique 0x45ec nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.909506] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.909725] virtio_fs_send_req: opcode 14 unique 0x45ee nodeid 0x2f5 in.len 48 out.len 16 queue_id 1 [ 648.909764] virtio_fs_send_req: opcode 14 unique 0x45f0 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.910023] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.910119] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.910240] overlayfs: open(0000000044db1ed7[gconv/gconv-modules.cache/l], 0100000) -> (0000000046b528d3, 01100000) [ 648.910245] overlayfs: open(000000001dc27c49[lib64/libreadline.so.8.3/l], 0100000) -> (000000006c3dd911, 01100000) [ 648.910382] virtio_fs_send_req: opcode 25 unique 0x45f2 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.910515] virtio_fs_send_req: opcode 25 unique 0x45f4 nodeid 0x2f5 in.len 64 out.len 0 queue_id 1 [ 648.910662] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.910775] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.910915] virtio_fs_send_req: opcode 5 unique 0x45f6 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.910930] virtio_fs_send_req: opcode 14 unique 0x45f8 nodeid 0x2b2 in.len 48 out.len 16 queue_id 1 [ 648.911124] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.911233] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.911331] overlayfs: open(0000000044db1ed7[locale/locale.alias/l], 0100000) -> (000000001b94a7b7, 01100000) [ 648.911332] virtio_fs_send_req: opcode 5 unique 0x45fa nodeid 0x2f6 in.len 40 out.len 4095 queue_id 1 [ 648.911483] virtio_fs_send_req: opcode 25 unique 0x45fc nodeid 0x2b2 in.len 64 out.len 0 queue_id 1 [ 648.911664] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.911757] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.911865] virtio_fs_send_req: opcode 18 unique 0x45fe nodeid 0x2b2 in.len 64 out.len 0 queue_id 1 [ 648.911870] virtio_fs_send_req: opcode 14 unique 0x4600 nodeid 0x2f7 in.len 48 out.len 16 queue_id 1 [ 648.912086] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.912188] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.912284] overlayfs: open(000000001dc27c49[lib64/libmpfr.so.6.2.2/l], 0100000) -> (00000000dd259cff, 01100000) [ 648.912289] virtio_fs_send_req: opcode 18 unique 0x4602 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.912456] virtio_fs_send_req: opcode 25 unique 0x4604 nodeid 0x2f7 in.len 64 out.len 0 queue_id 1 [ 648.912515] virtio_fs_send_req: opcode 18 unique 0x4606 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.912599] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.912603] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.912924] virtio_fs_send_req: opcode 18 unique 0x4608 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.912943] virtio_fs_send_req: opcode 5 unique 0x460a nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.913017] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.913020] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.913078] virtio_fs_send_req: opcode 18 unique 0x460c nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.913298] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.913356] virtio_fs_send_req: opcode 18 unique 0x460e nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.913463] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.913537] virtio_fs_send_req: opcode 18 unique 0x4610 nodeid 0x245 in.len 64 out.len 0 queue_id 1 [ 648.913877] virtio_fs_send_req: opcode 5 unique 0x4612 nodeid 0x2f8 in.len 40 out.len 4095 queue_id 1 [ 648.913927] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.914219] virtio_fs_send_req: opcode 14 unique 0x4614 nodeid 0x2f9 in.len 48 out.len 16 queue_id 1 [ 648.914388] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914488] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.914586] overlayfs: open(000000001dc27c49[lib64/libgmp.so.10.5.0/l], 0100000) -> (00000000c480dc70, 01100000) [ 648.914746] virtio_fs_send_req: opcode 25 unique 0x4616 nodeid 0x2f9 in.len 64 out.len 0 queue_id 1 [ 648.914898] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.914993] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915130] virtio_fs_send_req: opcode 5 unique 0x4618 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.915297] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.915391] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915500] virtio_fs_send_req: opcode 14 unique 0x461a nodeid 0x42 in.len 48 out.len 16 queue_id 1 [ 648.915676] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.915772] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.915873] overlayfs: open(000000001dc27c49[lib64/libm.so.6/l], 0100000) -> (00000000aab89989, 01100000) [ 648.916022] virtio_fs_send_req: opcode 25 unique 0x461c nodeid 0x42 in.len 64 out.len 0 queue_id 1 [ 648.916184] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.916282] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.916386] virtio_fs_send_req: opcode 5 unique 0x461e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.916559] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.916656] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.916756] virtio_fs_send_req: opcode 14 unique 0x4620 nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.916947] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917045] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.917171] overlayfs: open(000000001dc27c49[lib64/libc.so.6/l], 0100000) -> (00000000065b2aff, 01100000) [ 648.917339] virtio_fs_send_req: opcode 25 unique 0x4622 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.917498] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917596] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.917710] virtio_fs_send_req: opcode 5 unique 0x4624 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.917901] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.917998] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918105] virtio_fs_send_req: opcode 5 unique 0x4626 nodeid 0x1ed in.len 40 out.len 4095 queue_id 1 [ 648.918283] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.918380] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918489] virtio_fs_send_req: opcode 14 unique 0x4628 nodeid 0x1ee in.len 48 out.len 16 queue_id 1 [ 648.918682] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.918780] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.918881] overlayfs: open(000000001dc27c49[lib64/libtinfo.so.6.5/l], 0100000) -> (0000000057c26190, 01100000) [ 648.919054] virtio_fs_send_req: opcode 25 unique 0x462a nodeid 0x1ee in.len 64 out.len 0 queue_id 1 [ 648.919219] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.919318] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.919997] virtio_fs_send_req: opcode 18 unique 0x462c nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.920159] virtio_fs_send_req: opcode 14 unique 0x462e nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.920169] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.920368] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.920492] overlayfs: open(000000001dc27c49[locale/locale-archive/l], 0100000) -> (00000000fce78bd3, 01100000) [ 648.920627] virtio_fs_send_req: opcode 25 unique 0x4630 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.920772] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.920871] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921036] virtio_fs_send_req: opcode 14 unique 0x4632 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.921211] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.921308] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921400] overlayfs: open(000000001dc27c49[gconv/gconv-modules.cache/l], 0100000) -> (00000000d54e120f, 01100000) [ 648.921523] virtio_fs_send_req: opcode 25 unique 0x4634 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.921666] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.921770] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.921832] virtqueue callback for 00000000531af360 (00000000df837aee) [ 648.922226] virtio_fs_send_req: opcode 18 unique 0x4636 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.922326] virtio_fs_send_req: opcode 18 unique 0x4638 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.922400] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.922416] virtio_fs_send_req: opcode 18 unique 0x463a nodeid 0x2f5 in.len 64 out.len 0 queue_id 1 [ 648.922482] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.922564] virtio_fs_send_req: opcode 18 unique 0x463c nodeid 0x2f7 in.len 64 out.len 0 queue_id 1 [ 648.922690] virtio_fs_send_req: opcode 18 unique 0x463e nodeid 0x2f9 in.len 64 out.len 0 queue_id 1 [ 648.922762] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.922780] virtio_fs_send_req: opcode 18 unique 0x4640 nodeid 0x42 in.len 64 out.len 0 queue_id 1 [ 648.922847] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.922929] virtio_fs_send_req: opcode 18 unique 0x4642 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.923060] virtio_fs_send_req: opcode 18 unique 0x4644 nodeid 0x1ee in.len 64 out.len 0 queue_id 1 [ 648.923126] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.923166] virtio_fs_send_req: opcode 18 unique 0x4646 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.923228] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.923311] virtio_fs_send_req: opcode 18 unique 0x4648 nodeid 0x2f3 in.len 64 out.len 0 queue_id 1 [ 648.923487] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.923557] virtiofs virtio0: virtio_fs_vq_done requests.0 Delta-CAL (IPI): 6007 - this number is before the insert-sort, final number is better. [ 648.926990] virtio_fs_send_req: opcode 14 unique 0x464a nodeid 0xae in.len 48 out.len 16 queue_id 1 [ 648.927221] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.927312] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.927409] overlayfs: open(00000000ae2b3a37[/machine-id/l], 0100000) -> (00000000ebc0a9b2, 01100000) [ 648.927537] virtio_fs_send_req: opcode 25 unique 0x464c nodeid 0xae in.len 64 out.len 0 queue_id 1 [ 648.927709] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.927798] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.927888] virtio_fs_send_req: opcode 18 unique 0x464e nodeid 0xae in.len 64 out.len 0 queue_id 1 [ 648.928052] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.928135] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.928914] virtqueue callback for 00000000b8493952 (000000004941ab6e) [ 648.929008] virtio_fs_send_req: opcode 5 unique 0x4650 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929175] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929246] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929318] virtio_fs_send_req: opcode 5 unique 0x4652 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929467] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929535] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929604] virtio_fs_send_req: opcode 5 unique 0x4654 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.929751] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.929824] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.929899] virtio_fs_send_req: opcode 5 unique 0x4656 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930043] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930110] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930188] virtio_fs_send_req: opcode 5 unique 0x4658 nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930331] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930399] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930503] virtio_fs_send_req: opcode 5 unique 0x465a nodeid 0x23 in.len 40 out.len 4095 queue_id 1 [ 648.930648] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.930717] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.930795] virtio_fs_send_req: opcode 14 unique 0x465c nodeid 0x204 in.len 48 out.len 16 queue_id 1 [ 648.930976] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931046] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931132] overlayfs: open(00000000b23a5ecd[bin/sed/l], 0100040) -> (0000000074755de1, 01100040) [ 648.931288] virtio_fs_send_req: opcode 5 unique 0x465e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.931448] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931517] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931600] virtio_fs_send_req: opcode 14 unique 0x4660 nodeid 0x28 in.len 48 out.len 16 queue_id 1 [ 648.931751] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.931826] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.931906] overlayfs: open(00000000fea37e0c[lib64/ld-linux-x86-64.so.2/l], 0100040) -> (00000000ebc0a9b2, 01100040) [ 648.932282] virtio_fs_send_req: opcode 14 unique 0x4662 nodeid 0x2b in.len 48 out.len 16 queue_id 1 [ 648.932437] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.932508] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.932593] overlayfs: open(00000000fea37e0c[/ld.so.cache/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.932710] virtio_fs_send_req: opcode 25 unique 0x4664 nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.932868] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.932945] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933038] virtio_fs_send_req: opcode 5 unique 0x4666 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.933203] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933285] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933377] virtio_fs_send_req: opcode 5 unique 0x4668 nodeid 0x2c in.len 40 out.len 4095 queue_id 1 [ 648.933528] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933606] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.933695] virtio_fs_send_req: opcode 14 unique 0x466a nodeid 0x2d in.len 48 out.len 16 queue_id 1 [ 648.933850] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.933924] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934031] overlayfs: open(00000000fea37e0c[lib64/libacl.so.1.1.2302/l], 0100000) -> (000000003b97b39b, 01100000) [ 648.934194] virtio_fs_send_req: opcode 25 unique 0x466c nodeid 0x2d in.len 64 out.len 0 queue_id 1 [ 648.934349] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.934427] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934513] virtio_fs_send_req: opcode 5 unique 0x466e nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.934668] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.934745] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.934835] virtio_fs_send_req: opcode 14 unique 0x4670 nodeid 0x41 in.len 48 out.len 16 queue_id 1 [ 648.934991] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935069] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935152] overlayfs: open(00000000fea37e0c[lib64/libselinux.so.1/l], 0100000) -> (00000000761f1272, 01100000) [ 648.935308] virtio_fs_send_req: opcode 25 unique 0x4672 nodeid 0x41 in.len 64 out.len 0 queue_id 1 [ 648.935462] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935540] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935650] virtio_fs_send_req: opcode 5 unique 0x4674 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.935800] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.935899] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.935994] virtio_fs_send_req: opcode 14 unique 0x4676 nodeid 0x30 in.len 48 out.len 16 queue_id 1 [ 648.936148] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.936226] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.936316] overlayfs: open(00000000fea37e0c[lib64/libc.so.6/l], 0100000) -> (0000000046b528d3, 01100000) [ 648.936448] virtio_fs_send_req: opcode 25 unique 0x4678 nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.936612] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.936691] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.936784] virtio_fs_send_req: opcode 5 unique 0x467a nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.936943] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937022] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937125] virtio_fs_send_req: opcode 5 unique 0x467c nodeid 0x43 in.len 40 out.len 4095 queue_id 1 [ 648.937274] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937353] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937447] virtio_fs_send_req: opcode 14 unique 0x467e nodeid 0x44 in.len 48 out.len 16 queue_id 1 [ 648.937604] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.937683] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.937769] overlayfs: open(00000000fea37e0c[lib64/libattr.so.1.1.2502/l], 0100000) -> (00000000ce7f73a3, 01100000) [ 648.937964] virtio_fs_send_req: opcode 25 unique 0x4680 nodeid 0x44 in.len 64 out.len 0 queue_id 1 [ 648.938148] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938229] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.938329] virtio_fs_send_req: opcode 5 unique 0x4682 nodeid 0x26 in.len 40 out.len 4095 queue_id 1 [ 648.938499] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938577] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.938669] virtio_fs_send_req: opcode 5 unique 0x4684 nodeid 0x4b in.len 40 out.len 4095 queue_id 1 [ 648.938831] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.938914] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.939013] virtio_fs_send_req: opcode 14 unique 0x4686 nodeid 0x4c in.len 48 out.len 16 queue_id 1 [ 648.939192] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.939272] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.939361] overlayfs: open(00000000fea37e0c[lib64/libpcre2-8.so.0.15.0/l], 0100000) -> (000000001b94a7b7, 01100000) [ 648.939502] virtio_fs_send_req: opcode 25 unique 0x4688 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.939654] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.939734] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940088] virtio_fs_send_req: opcode 18 unique 0x468a nodeid 0x2b in.len 64 out.len 0 queue_id 1 [ 648.940214] virtio_fs_send_req: opcode 1 unique 0x468c nodeid 0x1 in.len 48 out.len 128 queue_id 1 [ 648.940273] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.940394] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940552] virtio_fs_send_req: opcode 14 unique 0x468e nodeid 0x2a7 in.len 48 out.len 16 queue_id 1 [ 648.940730] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.940819] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.940910] overlayfs: open(00000000fea37e0c[locale/locale-archive/l], 0100000) -> (00000000a546e0ec, 01100000) [ 648.941042] virtio_fs_send_req: opcode 25 unique 0x4690 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.941215] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.941295] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.941413] virtio_fs_send_req: opcode 14 unique 0x4692 nodeid 0x2a9 in.len 48 out.len 16 queue_id 1 [ 648.941577] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.941654] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.941735] overlayfs: open(00000000fea37e0c[gconv/gconv-modules.cache/l], 0100000) -> (000000007d5f2653, 01100000) [ 648.941867] virtio_fs_send_req: opcode 25 unique 0x4694 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.942022] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.942105] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.942374] virtio_fs_send_req: opcode 18 unique 0x4696 nodeid 0x28 in.len 64 out.len 0 queue_id 1 [ 648.942487] virtio_fs_send_req: opcode 18 unique 0x4698 nodeid 0x2a9 in.len 64 out.len 0 queue_id 1 [ 648.942559] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.942599] virtio_fs_send_req: opcode 18 unique 0x469a nodeid 0x2d in.len 64 out.len 0 queue_id 1 [ 648.942660] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.942757] virtio_fs_send_req: opcode 18 unique 0x469c nodeid 0x41 in.len 64 out.len 0 queue_id 1 [ 648.942912] virtio_fs_send_req: opcode 18 unique 0x469e nodeid 0x30 in.len 64 out.len 0 queue_id 1 [ 648.942973] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943020] virtio_fs_send_req: opcode 18 unique 0x46a0 nodeid 0x44 in.len 64 out.len 0 queue_id 1 [ 648.943084] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.943247] virtio_fs_send_req: opcode 18 unique 0x46a2 nodeid 0x4c in.len 64 out.len 0 queue_id 1 [ 648.943318] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943353] virtio_fs_send_req: opcode 18 unique 0x46a4 nodeid 0x2a7 in.len 64 out.len 0 queue_id 1 [ 648.943417] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.943514] virtio_fs_send_req: opcode 18 unique 0x46a6 nodeid 0x204 in.len 64 out.len 0 queue_id 1 [ 648.943698] virtqueue callback for 00000000ffb9412a (00000000c5ce06f7) [ 648.943776] virtiofs virtio0: virtio_fs_vq_done requests.0 [ 648.948394] uart_wait_until_sent(0), jiffies=4295316070, expire=4295316142... root@drm-misc-fixes-2026-02-26-80-g9a2f253ad689:/home/jimc/projects/lx/wk-D/b0-dd# --- drivers/virtio/virtio_ring.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 335692d41617..99f9e547d264 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -759,7 +759,7 @@ static inline int virtqueue_add_split(struct vring_virtqueue *vq, vq->split.avail_idx_shadow); vq->num_added++; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); /* This is very unlikely, but theoretically possible. Kick @@ -930,7 +930,7 @@ static void *virtqueue_get_buf_ctx_split(struct vring_virtqueue *vq, } if (!more_used_split(vq)) { - pr_debug("No more buffers in queue\n"); + pr_debug_ratelimited("No more buffers in queue\n"); END_USE(vq); return NULL; } @@ -1595,7 +1595,7 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq, vq->num_added += 1; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -1744,7 +1744,7 @@ static inline int virtqueue_add_packed(struct vring_virtqueue *vq, vq->packed.vring.desc[head].flags = head_flags; vq->num_added += descs_used; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -1902,7 +1902,7 @@ static inline int virtqueue_add_packed_in_order(struct vring_virtqueue *vq, vq->packed.vring.desc[head].flags = head_flags; vq->num_added += total_sg; - pr_debug("Added buffer head %i to %p\n", head, vq); + pr_debug_ratelimited("Added buffer head %i to %p\n", head, vq); END_USE(vq); return 0; @@ -3231,7 +3231,7 @@ irqreturn_t vring_interrupt(int irq, void *_vq) struct vring_virtqueue *vq = to_vvq(_vq); if (!more_used(vq)) { - pr_debug("virtqueue interrupt with no work for %p\n", vq); + pr_debug_ratelimited("virtqueue interrupt with no work for %p\n", vq); return IRQ_NONE; } -- 2.53.0

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[PATCH v2 0/6] dma-buf: heaps: add coherent reserved-memory heap

by Albert Esteve

This patch introduces a new heap driver to expose DT non‑reusable "shared-dma-pool" coherent regions as dma-buf heaps, so userspace can allocate buffers from each reserved, named region. Because these regions are device‑dependent, each heap instance binds a heap device to its reserved‑mem region via a newly introduced helper function -namely, of_reserved_mem_device_init_with_mem()- so coherent allocations use the correct dev->dma_mem. Charging to cgroups for these buffers is intentionally left out to keep review focused on the new heap; I plan to follow up based on Eric’s [1] and Maxime’s [2] work on dmem charging from userspace. This series also makes the new heap driver modular, in line with the CMA heap change in [3]. [1] https://lore.kernel.org/all/20260218-dmabuf-heap-cma-dmem-v2-0-b249886fb7b2… [2] https://lore.kernel.org/all/20250310-dmem-cgroups-v1-0-2984c1bc9312@kernel.… [3] https://lore.kernel.org/all/20260303-dma-buf-heaps-as-modules-v3-0-24344812… Signed-off-by: Albert Esteve <aesteve(a)redhat.com> --- Changes in v2: - Removed dmem charging parts - Moved coherent heap registering logic to coherent.c - Made heap device a member of struct dma_heap - Split dma_heap_add logic into create/register, to be able to access the stored heap device before registered. - Avoid platform device in favour of heap device - Added a wrapper to rmem device_init() op - Switched from late_initcall() to module_init() - Made the coherent heap driver modular - Link to v1: https://lore.kernel.org/r/20260224-b4-dmabuf-heap-coherent-rmem-v1-1-dffef4… --- Albert Esteve (5): dma-buf: dma-heap: split dma_heap_add of_reserved_mem: add a helper for rmem device_init op dma-buf: heaps: Add Coherent heap to dmabuf heaps dma: coherent: register to coherent heap dma-buf: heaps: coherent: Turn heap into a module John Stultz (1): dma-buf: dma-heap: Keep track of the heap device struct drivers/dma-buf/dma-heap.c | 138 +++++++++-- drivers/dma-buf/heaps/Kconfig | 9 + drivers/dma-buf/heaps/Makefile | 1 + drivers/dma-buf/heaps/coherent_heap.c | 429 ++++++++++++++++++++++++++++++++++ drivers/of/of_reserved_mem.c | 27 ++- include/linux/dma-heap.h | 16 ++ include/linux/dma-map-ops.h | 7 + include/linux/of_reserved_mem.h | 8 + kernel/dma/coherent.c | 34 +++ 9 files changed, 642 insertions(+), 27 deletions(-) --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260223-b4-dmabuf-heap-coherent-rmem-91fd3926afe9 Best regards, -- Albert Esteve <aesteve(a)redhat.com>

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