On Tue 06-02-24 14:41:17, Naresh Kamboju wrote:
All qemu's mount rootfs failed on Linux next-20230206 tag due to the following kernel crash.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Crash log:
<3>[ 3.257960] /dev/root: Can't open blockdev <4>[ 3.258940] VFS: Cannot open root device "/dev/sda" or unknown-block(8,0): error -16
Uhuh, -16 is EBUSY so it seems Christian's block device opening changes are suspect? Do you have some sample kconfig available somewhere?
Honza
<4>[ 3.259704] Please append a correct "root=" boot option; here are the available partitions: <4>[ 3.261088] 0800 2500336 sda <4>[ 3.261186] driver: sd <4>[ 3.262260] 0b00 1048575 sr0 <4>[ 3.262409] driver: sr <3>[ 3.263022] List of all bdev filesystems: <3>[ 3.263553] ext3 <3>[ 3.263708] ext2 <3>[ 3.263994] ext4 <3>[ 3.264160] vfat <3>[ 3.264419] msdos <3>[ 3.264589] iso9660 <3>[ 3.264773] <0>[ 3.265665] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0) <4>[ 3.266991] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc3-next-20240206 #1 <4>[ 3.267593] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 <4>[ 3.268937] Call Trace: <4>[ 3.269316] <TASK> <4>[ 3.270113] dump_stack_lvl+0x71/0xb0 <4>[ 3.271837] dump_stack+0x14/0x20 <4>[ 3.272128] panic+0x12f/0x2f0 <4>[ 3.272812] ? _printk+0x5d/0x80 <4>[ 3.273097] mount_root_generic+0x26e/0x2b0 <4>[ 3.273941] mount_block_root+0x3f/0x50 <4>[ 3.274212] mount_root+0x60/0x80 <4>[ 3.274610] prepare_namespace+0x7a/0xb0 <4>[ 3.276008] kernel_init_freeable+0x137/0x180 <4>[ 3.276285] ? __pfx_kernel_init+0x10/0x10 <4>[ 3.276563] kernel_init+0x1e/0x1a0 <4>[ 3.276837] ret_from_fork+0x45/0x50 <4>[ 3.277319] ? __pfx_kernel_init+0x10/0x10 <4>[ 3.278176] ret_from_fork_asm+0x1a/0x30 <4>[ 3.278560] </TASK> <0>[ 3.280750] Kernel Offset: 0x1a800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) <0>[ 3.281985] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,0) ]---
Links:
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240206/tes...
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240206/tes...
-- Linaro LKFT https://lkft.linaro.org