Re: sleeping thread panic?

From: Konstantin Belousov <kostikbel_at_gmail.com>
Date: Sun, 8 Jul 2012 16:34:55 +0300
On Sun, Jul 08, 2012 at 08:46:32AM -0400, Michael Butler wrote:
> Sorry, no symbols but this happened twice last night while being the
> target of a dump over NFS ..
> 
> root_at_mail:/var/crash # less info.0
> Dump header from device /dev/ada0s1
>   Architecture: i386
>   Architecture Version: 2
>   Dump Length: 252809216B (241 MB)
>   Blocksize: 512
>   Dumptime: Sun Jul  8 00:21:23 2012
>   Hostname: mail.auburn.protected-networks.net
>   Magic: FreeBSD Kernel Dump
>   Version String: FreeBSD 10.0-CURRENT #87: Sat Jul  7 22:39:55 EDT 2012
>     root_at_mail.auburn.protected-networks.net:/usr/obj/usr/src/sys/AUBURN
>   Panic String: sleeping thread
>   Dump Parity: 2996346376
>   Bounds: 0
>   Dump Status: good
> 
> 
> (kgdb) bt
> #0  0xc07530cd in doadump ()
> #1  0xc0753656 in kern_reboot ()
> #2  0xc0753cfc in panic ()
> #3  0xc079a34e in propagate_priority ()
> #4  0xc079b5e4 in turnstile_wait ()
> #5  0xc073ea71 in _mtx_lock_sleep ()
> #6  0xc09c4772 in vm_page_unwire ()
> #7  0xc07db039 in vfs_vmio_release ()
> #8  0xc07dd476 in getnewbuf ()
> #9  0xc07de50b in getblk ()
> #10 0xc0966d99 in ffs_balloc_ufs2 ()
> #11 0xc099281e in ffs_write ()
> #12 0xc0a38b05 in VOP_WRITE_APV ()
> #13 0xc068a65e in nfsvno_write ()
> #14 0xc06882e7 in nfsrvd_write ()
> #15 0xc066ea05 in nfsrvd_dorpc ()
> #16 0xc067d42f in nfssvc_program ()
> #17 0xc09356e2 in svc_run_internal ()
> #18 0xc0935b70 in svc_thread_start ()
> #19 0xc07204fb in fork_exit ()
> #20 0xc09fe7a4 in fork_trampoline ()

You need to provide:
1. exact version of your kernel sources
2. complete panic message. There should be backtrace of the 'sleeping
thread', not the paniced thread, right after the panic message.


Received on Sun Jul 08 2012 - 11:35:51 UTC

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