Date: Sun, 15 May 2016 09:44:04 +0200 From: Kurt Jaeger <lists@opsec.eu> To: Will Brokenbourgh <will_brokenbourgh@yahoo.com> Cc: freebsd-current@freebsd.org Subject: Re: Lock order reversal errors during boot Message-ID: <20160515074404.GF15034@home.opsec.eu> In-Reply-To: <6b965a16-a6c7-a063-3c2a-7c577c2f9b56@yahoo.com> References: <6b965a16-a6c7-a063-3c2a-7c577c2f9b56@yahoo.com>
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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@opsec.eu +49 171 3101372 4 years to go !
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