Date: Wed, 06 Feb 2013 14:40:47 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Jens Jahnke <jan0sch@gmx.net> Cc: freebsd-stable@FreeBSD.org Subject: Re: FreeBSD 9.1 occasional kernel panic Message-ID: <51124F4F.4050902@FreeBSD.org> In-Reply-To: <20130206092908.d773cfde61f35347f32f6c47@gmx.net> References: <20130206092908.d773cfde61f35347f32f6c47@gmx.net>
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on 06/02/2013 10:29 Jens Jahnke said the following: > Hi, > > recently I've switched from 8.3 to 9.1 on my home box and are quite pleased > but occasionally I get a kernel panic like this: > > Feb 5 19:55:45 magni kernel: /dev: got error 6 while accessing filesystem > Feb 5 19:55:45 magni kernel: panic: softdep_deallocate_dependencies: > unrecovered I/O error Feb 5 19:55:45 magni kernel: cpuid = 1 Feb 5 19:55:45 > magni kernel: KDB: stack backtrace: Feb 5 19:55:45 magni kernel: #0 > 0xffffffff809208a6 at kdb_backtrace+0x66 Feb 5 19:55:45 magni kernel: #1 > 0xffffffff808ea8be at panic+0x1ce Feb 5 19:55:45 magni kernel: #2 > 0xffffffff80b08d30 at clear_remove+0 Feb 5 19:55:45 magni kernel: #3 > 0xffffffff80966cd0 at brelse+0x60 Feb 5 19:55:45 magni kernel: #4 > 0xffffffff8096a14c at bufwrite+0xfc Feb 5 19:55:45 magni kernel: #5 > 0xffffffff80b0bd47 at softdep_process_journal+0x867 Feb 5 19:55:45 magni > kernel: #6 0xffffffff80b0bf0a at jwait+0x9a Feb 5 19:55:45 magni kernel: #7 > 0xffffffff80b0c2b0 at flush_deplist+0x80 Feb 5 19:55:45 magni kernel: #8 > 0xffffffff80b0d531 at softdep_sync_metadata+0x1b1 Feb 5 19:55:45 magni > kernel: #9 0xffffffff80b2236b at ffs_syncvnode+0x44b Feb 5 19:55:45 magni > kernel: #10 0xffffffff80b22f91 at ffs_fsync+0x41 Feb 5 19:55:45 magni > kernel: #11 0xffffffff8098c600 at sys_fsync+0x160 Feb 5 19:55:45 magni > kernel: #12 0xffffffff80bd7ae6 at amd64_syscall+0x546 Feb 5 19:55:45 magni > kernel: #13 0xffffffff80bc3447 at Xfast_syscall+0xf7 > > It does not happen very often but when it happens it mostly happens several > times in a row. When I'm booting into single user while within such a > "series" I seem to be able to reproduce the panic. If I mount my partitions > one at a time the panic occurs several seconds after I mount my geli > encrypted home partition. > > System specs: Gigabyte GA-EP35-DS3P Intel Core 2 Duo E8500 4 GB DDR2-800 3 > HDDs (2x SATA, 1 SATA (Intel SSD)) > > System is installed on the SSD. > > Any ideas where this could be originating from? "error 6" is ENXIO, which usually corresponds to a disappearing device or some such. Do you get anything in logs (or other objective experience) that could look like that? -- Andriy Gapon
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