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Date: Sat, 15 Apr 2006 13:03:11 -0600
From: Scott Long <scottl@samsco.org>
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To: Marcus Alves Grando <mnag@freebsd.org>
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Cc: FreeBSD Stable <freebsd-stable@freebsd.org>,
	Matt Jacob <mjacob@freebsd.org>
Subject: Re: panic: softdep_move_dependencies: need merge code (driver
	mtp(4)?)
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Heh, that's supposed to be a 'this will never happen' case.

Scott


Marcus Alves Grando wrote:
> panic: softdep_move_dependencies: need merge code
> 
> Maybe something in mtp(4) driver?
> 
> FreeBSD 6.1-PRERELEASE #0: Sat Apr  1 04:20:17 BRT 2006
> 
> db> sh msgbuf
> msgbufp = 0xc103afe4
> magic = 63062, size = 32740, r= 35282, w = 66579, ptr = 0xc1033000,
> cksum= 2663542
> mpt0: Attempting to Abort Req 0xc4bd3238
> mpt0: Request 0xc4bd36e8 Timed out.
> mpt0: Request 0xc4bd2e00 Timed out.
> ...
> g_vfs_done():da0s1g[READ(offset=36612947968, length=16384)]error = 5i
> g_vfs_done():da0s1g[READ(offset=37008271360, length=2048)]error = 5n
> g_vfs_done():da0s1g[READ(offset=37725519872, length=8192)]error = 5
> g_vfs_done():da0s1g[WRITE(offset=40080080896, length=16384)]error = 5
> panic: softdep_move_dependencies: need merge code
> cpuid = 1
> KDB: enter: panic
> xited on signal 11
> 
> db> bt
> Tracing pid 3 tid 100016 td 0xc4ae6af0
> kdb_enter(c0791fcb) at kdb_enter+0x2b
> panic(c079eff5,d8bf6bc0,c4f4e830,4,e35dcc90) at panic+0x127
> softdep_move_dependencies(d8bf6bc0,d8bcf040) at
> softdep_move_dependencies+0x1f
> ffs_backgroundwritedone(d8bf6bc0) at ffs_backgroundwritedone+0xca
> bufdone(d8bf6bc0) at bufdone+0x42
> g_vfs_done(c5d9e084) at g_vfs_done+0xab
> biodone(c5d9e084) at biodone+0x8b
> g_io_schedule_up(c4ae6af0) at g_io_schedule_up+0x86
> g_up_procbody(0,e35dcd38) at g_up_procbody+0x92
> fork_exit(c05270b8,0,e35dcd38) at fork_exit+0x71
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xe35dcd6c, ebp = 0 ---
> 
> All DDB info:
> http://marcus.grupos.com.br:8080/patch/panic-server.log
> 
> Thanks
>