Date: Wed, 25 Nov 1998 15:59:53 +0100 From: Jesper Skriver <jesper@skriver.dk> To: David Greenman <dg@root.com> Cc: current@FreeBSD.ORG Subject: Re: Random craches under heavy(?) disk activity Message-ID: <19981125155953.A2593@skriver.dk> In-Reply-To: <199811251338.FAA04533@root.com>; from David Greenman on Wed, Nov 25, 1998 at 05:38:43AM -0800 References: <19981125094641.A28029@skriver.dk> <199811251338.FAA04533@root.com>
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On Wed, Nov 25, 1998 at 05:38:43AM -0800, David Greenman wrote:
> This is unrelated to the filesystem panic that we've been talking about. I
> saw your followup about the fault occuring in zalloci(). A traceback would
> be helpfull in isolating this problem.
This is with a diffenrent kernel with support for DDB
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x67566f7c
fault code = supervisor read, page not present
instruction pointer = 0x8 :0xf0153798
stack pointer = 0x10 : 0xf42c2d34
frame pointer = 0x10 : 0xf42c2d34
code segment = base 0x0, limit 0xfffff type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 264 (cpp)
interrupt mask = bio
kernel: type 12 trap, code=0
Stopped at _gbincore+0x20: cmpl %ecx,0x64(%eax)
db> trace
_gbincore(f42b3740,0,288e,11,f42c2eb8) at _gbincore+0x20
_getblk(f42b3740,0,2000,0,0) at _getblk+0x6d
_cluster_read(f42b3740,288e,0,0,2000) at _cluster_read+0x8b
_ffs_read(f42c2eec,f4205300,288e,f42c2f84,f42c2eec) at _ffs_read+0x3e9
_vn_read(f0a6ab80,f42c2f30,f09f9c80,f4205300,f0234de4) at _vn_read+0x121
_read(f4205300,f42c2f84,0,288e,8093000) at _read+0xb9
_syscall(27,27,8093000,288e,efbfd388) at _syscall+0x187
_Xint0x80_syscall() at _Xint0x80_syscall+0x2c
db>
/Jesper
--
Jesper Skriver (JS4261-RIPE), Network manager
Tele Danmark DataNet, IP section (AS3292)
One Unix to rule them all, One Resolver to find them,
One IP to bring them all and in the zone to bind them.
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