Messages in this thread | | | From | Marti Raudsepp <> | Date | Wed, 21 Mar 2012 15:16:34 +0200 | Subject | ext4 startup kernel oops in kernel 3.3.0 |
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Hi,
I'm using kernel 3.3.0 on one of my VMs and recently it oopsed in ext4 during startup. Before this crash, I did a package update, followed quickly by a reboot.
Things went wrong early enough in the boot process that there are no log entries of the system's startup. Yet the fact that it crashed at 12 seconds is weird -- usually this machine boots in under 3 seconds.
Strangely enough, after another reboot, things were OK again.
I'm using Arch Linux with systemd, x86_64 VM under QEMU/KVM. virtio storage using QEMU's "threads" I/O mode. ext4 with the only mount option "noatime".
Here's a picture of the oops: http://ompldr.org/vZDNnNg
Since all I have is this screenshot, I'll have to type in the stack trace. The oops message itself was lost thanks to kernel's brilliant debugging tools (Shift+PgUp didn't work).
Process: flush-254:0 (pid 299)
Call Trace: ? pagevec_lookup_tag ? write_cache_pages_da [ext4] mpage_da_map_and_submit [ext4] ? ext4_da_writepages [ext4] ext4_da_writepages [ext4] do_writepages writeback_single_inode writeback_sb_inodes __writeback_inodes_wb wb_writeback ? prop_fraction_percpu wb_do_writeback ? schedule_timeout bdi_writeback_thread ? wb_do_writeback kthread kernel_thread_helper ? kthread_freezable_should_stop ? gs_change
RIP mpage_da_submit_io [ext4]
Regards, Marti
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