Regression on qemu-arm64 boot failed due to kernel panic with the following boot errors.

Boot regression: arm, arm64 kernel panic handle_fasteoi_irq

Started noticing from next-20250219. Good: next-20250218 Bad: next-20250219

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

Boot log: --------- [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x000f0510] [ 0.000000] Linux version 6.14.0-rc3-next-20250219 (tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 13.3.0-12) 13.3.0, GNU ld (GNU Binutils for Debian) 2.43.90.20250127) #1 SMP PREEMPT @1739943628 [ 0.000000] KASLR enabled [ 0.000000] random: crng init done [ 0.000000] Machine model: linux,dummy-virt <trim> <6>[ 3.812053] loop: module loaded <6>[ 3.814219] virtio_blk virtio0: 2/0/0 default/read/poll queues <5>[ 3.831704] virtio_blk virtio0: [vda] 5345376 512-byte logical blocks (2.74 GB/2.55 GiB) <1>[ 3.852043] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 <1>[ 3.852124] Mem abort info: <1>[ 3.852141] ESR = 0x000000008600002b <1>[ 3.852200] EC = 0x21: IABT (current EL), IL = 32 bits <1>[ 3.852229] SET = 0, FnV = 0 <1>[ 3.852249] EA = 0, S1PTW = 0 <1>[ 3.852273] FSC = 0x2b: level -1 translation fault <1>[ 3.852335] [0000000000000000] user address but active_mm is swapper <0>[ 3.852610] Internal error: Oops: 000000008600002b [#1] PREEMPT SMP <4>[ 3.857169] Modules linked in: <4>[ 3.858810] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.14.0-rc3-next-20250219 #1 <4>[ 3.859808] Hardware name: linux,dummy-virt (DT) <4>[ 3.860409] pstate: 824028c9 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=-c) <4>[ 3.861239] pc : 0x0 <4>[ 3.862440] lr : cond_unmask_eoi_irq (kernel/irq/chip.c:676) <4>[ 3.863382] sp : ffff80008000bf70 <4>[ 3.863709] x29: ffff80008000bf70 x28: ffff73e3c02e0000 x27: 0000000000001000 <4>[ 3.864549] x26: ffff73e3c0544000 x25: 0000000000000040 x24: ffff80008002b458 <4>[ 3.865425] x23: 0000000061400009 x22: ffff73e3c098ce30 x21: ffff73e3c098d4ac <4>[ 3.866218] x20: ffff73e3c098d430 x19: ffff73e3c098d400 x18: 00000000ffffffff <4>[ 3.867099] x17: ffffdbf12bdaf000 x16: ffff800080008000 x15: ffff800081000000 <4>[ 3.867863] x14: 0000000000000040 x13: 0000000000000000 x12: ffffffcf4f041ec0 <4>[ 3.868612] x11: 0000000000000040 x10: ffff73e3c001d230 x9 : ffff97f2d115aeb0 <4>[ 3.869259] x8 : ffffffffffffffc0 x7 : 6395bf3371f0dbee x6 : ffff73e3ff4d9ba0 <4>[ 3.870107] x5 : 0000000000000000 x4 : 0000000000000026 x3 : 0000000000000000 <4>[ 3.870812] x2 : ffff73e3c098d400 x1 : 0000000000000000 x0 : ffff73e3c098d430 <4>[ 3.871938] Call trace: <4>[ 3.872496] 0x0 (P) <4>[ 3.873023] handle_fasteoi_irq (kernel/irq/chip.c:727) <4>[ 3.873647] handle_irq_desc (kernel/irq/irqdesc.c:715) <4>[ 3.874062] generic_handle_domain_irq (kernel/irq/irqdesc.c:771) <4>[ 3.874521] gic_handle_irq (drivers/irqchip/irq-gic.c:344 (discriminator 1)) <4>[ 3.875043] call_on_irq_stack (arch/arm64/kernel/entry.S:897) <4>[ 3.875400] do_interrupt_handler (arch/arm64/kernel/entry-common.c:310) <4>[ 3.875906] el1_interrupt (arch/arm64/kernel/entry-common.c:561 arch/arm64/kernel/entry-common.c:575) <4>[ 3.876244] el1h_64_irq_handler (arch/arm64/kernel/entry-common.c:581) <4>[ 3.876690] el1h_64_irq (arch/arm64/kernel/entry.S:596) <4>[ 3.877270] __blk_flush_plug (block/blk-core.c:1225) (P) <4>[ 3.877637] __submit_bio (block/blk-core.c:1241 (discriminator 1) block/blk-core.c:1237 (discriminator 1) block/blk-core.c:642 (discriminator 1)) <4>[ 3.878180] submit_bio_noacct_nocheck (include/linux/bio.h:576 block/blk-core.c:716 block/blk-core.c:744) <4>[ 3.878712] submit_bio_noacct (block/blk-core.c:875) <4>[ 3.879175] submit_bio (block/blk-core.c:910) <4>[ 3.879442] submit_bh_wbc (fs/buffer.c:2809) <4>[ 3.880010] block_read_full_folio (fs/buffer.c:2442 (discriminator 1)) <4>[ 3.880454] blkdev_read_folio (block/fops.c:468) <4>[ 3.880914] filemap_read_folio (mm/filemap.c:2399) <4>[ 3.881400] do_read_cache_folio (mm/filemap.c:3969) <4>[ 3.881933] read_cache_folio (mm/filemap.c:4003) <4>[ 3.882325] read_part_sector (block/partitions/core.c:723 (discriminator 1)) <4>[ 3.882730] read_lba (block/partitions/efi.c:248) <4>[ 3.883009] efi_partition (block/partitions/efi.c:177 (discriminator 1) block/partitions/efi.c:604 (discriminator 1) block/partitions/efi.c:720 (discriminator 1)) <4>[ 3.883384] bdev_disk_changed (block/partitions/core.c:142 block/partitions/core.c:589 block/partitions/core.c:693) <4>[ 3.884038] blkdev_get_whole (block/bdev.c:706) <4>[ 3.884467] bdev_open (block/bdev.c:915) <4>[ 3.884736] bdev_file_open_by_dev (block/bdev.c:1018 block/bdev.c:992) <4>[ 3.885367] disk_scan_partitions (block/genhd.c:376 (discriminator 1)) <4>[ 3.885988] add_disk_fwnode (block/genhd.c:526) <4>[ 3.886377] device_add_disk (block/genhd.c:587) <4>[ 3.886707] virtblk_probe (drivers/block/virtio_blk.c:1535) <4>[ 3.887022] virtio_dev_probe (drivers/virtio/virtio.c:341) <4>[ 3.887438] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) <4>[ 3.888073] __driver_probe_device (drivers/base/dd.c:800) <4>[ 3.888474] driver_probe_device (drivers/base/dd.c:830) <4>[ 3.888908] __driver_attach (drivers/base/dd.c:1217) <4>[ 3.889499] bus_for_each_dev (drivers/base/bus.c:370) <4>[ 3.889936] driver_attach (drivers/base/dd.c:1235) <4>[ 3.890312] bus_add_driver (drivers/base/bus.c:678) <4>[ 3.890708] driver_register (drivers/base/driver.c:249) <4>[ 3.891060] __register_virtio_driver (drivers/virtio/virtio.c:416) <4>[ 3.891547] virtio_blk_init (drivers/block/virtio_blk.c:1695) <4>[ 3.891971] do_one_initcall (init/main.c:1257) <4>[ 3.892273] kernel_init_freeable (init/main.c:1318 (discriminator 1) init/main.c:1335 (discriminator 1) init/main.c:1354 (discriminator 1) init/main.c:1567 (discriminator 1)) <4>[ 3.892596] kernel_init (init/main.c:1461) <4>[ 3.892888] ret_from_fork (arch/arm64/kernel/entry.S:863) <0>[ 3.894314] Code: io_uring LICENSES Makefile security io_uring LICENSES Makefile security io_uring LICENSES Makefile security io_uring LICENSES Makefile security (????????) All code ========

Code starting with the faulting instruction =========================================== <4>[ 3.895583] ---[ end trace 0000000000000000 ]--- <0>[ 3.897170] Kernel panic - not syncing: Oops: Fatal exception in interrupt <2>[ 3.898084] SMP: stopping secondary CPUs <0>[ 3.900403] Kernel Offset: 0x17f251000000 from 0xffff800080000000 <0>[ 3.901020] PHYS_OFFSET: 0xfff08c1d40000000 <0>[ 3.901448] CPU features: 0x000,000000d0,60bef2f8,cb7e7f3f <0>[ 3.902230] Memory Limit: none <0>[ 3.902988] ---[ end Kernel panic - not syncing: Oops: Fatal exception in interrupt ]---

## Source * Kernel version: 6.14.0-rc3-next-20250219 * Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git * Git sha: 8936cec5cb6e27649b86fabf383d7ce4113bba49 * Git describe: next-20250219 * Project details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250219/

## Build * Test log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250219/tes... * Test history: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250219/tes... * Test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250219/tes... * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2tFMKFT6i1JOAPACynnhw... * Architecures: arm64 * Toolchain version: gcc-13

-- Linaro LKFT https://lkft.linaro.org