Lock order reversal errors during boot
Kurt Jaeger
lists at opsec.eu
Sun May 15 07:44:07 UTC 2016
Hi!
> I am seeing 'lock order reversal' errors during boot on 11-CURRENT -
> r298793. A sample error:
>
> lock order reversal:
> 1st 0xfffff8011280d068 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2498
> 2nd 0xfffffe01ca539400 bufwait (bufwait) @
> /usr/src/sys/ufs/ffs/ffs_vnops.c:263
> 3rd 0xfffff80112a23b78 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2498
> stack backtrace:
> #0 0xffffffff80a94bf0 at witness_debugger+0x70
> #1 0xffffffff80a94ae4 at witness_checkorder+0xe54
> #2 0xffffffff80a0fdd6 at __lockmgr_args+0x4d6
> #3 0xffffffff80ce9626 at ffs_lock+0xa6
> [...snip...]
>
> I'm not sure if this is even something I should report, but better safe
> than sorry, yes?
Yes, and there's even a page to compare your LOR against other ones:
http://sources.zabbadoz.net/freebsd/lor.html
Can you try if you find your LOR there ? If not, can you add it
to that page ?
--
pi at opsec.eu +49 171 3101372 4 years to go !
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