Date: Thu, 31 Jul 2003 13:48:42 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Kris Kennaway <kris@obsecurity.org> Cc: current@FreeBSD.org Subject: Re: panic: vm_fault: fault on nofault entry, addr: fffffe0007e8e000 Message-ID: <20030731204842.GA14640@rot13.obsecurity.org> In-Reply-To: <20030731084859.GB36327@rot13.obsecurity.org> References: <20030731084859.GB36327@rot13.obsecurity.org>
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On Thu, Jul 31, 2003 at 01:48:59AM -0700, Kris Kennaway wrote:
> I upgraded the alpha package machines tonight, and one of them fell
> over shortly after taking load, with the following:
>=20
> panic: vm_fault: fault on nofault entry, addr: fffffe0007e8e000
> Stack backtrace:
> db_print_backtrace() at db_print_backtrace+0x18
> backtrace() at backtrace+0x2c
> panic() at panic+0x148
> vm_fault() at vm_fault+0x1360
> trap() at trap+0x5c8
> XentMM() at XentMM+0x2c
> --- memory management fault (from ipl 0) ---
> bcopy_samealign_lp() at bcopy_samealign_lp
> cpu_fork() at cpu_fork+0x12c
> vm_forkproc() at vm_forkproc+0x204
> fork1() at fork1+0xfec
> vfork() at vfork+0x30
> syscall() at syscall+0x33c
> XentSys() at XentSys+0x64
> --- syscall (66) ---
> --- user mode ---
Two more panics on alpha:
panic: vm_fault: fault on nofault entry, addr: fffffe0007fde000
Debugger() at Debugger+0x38
panic() at panic+0x168
vm_fault() at vm_fault+0x1360
trap() at trap+0x5c8
XentMM() at XentMM+0x2c
--- memory management fault (from ipl 0) ---
bcopy_samealign_lp() at bcopy_samealign_lp+0x8
copyout() at copyout+0x38
uiomove() at uiomove+0x19c
pipe_read() at pipe_read+0x290
dofileread() at dofileread+0x100
read() at read+0x64
syscall() at syscall+0x33c
XentSys() at XentSys+0x64
--- syscall (3, FreeBSD ELF64, read) ---
--- user mode ---
db>
fatal kernel trap:
trap entry =3D 0x2 (memory management fault)
faulting va =3D 0xfffffe0007f9c088
type =3D access violation
cause =3D load instructon
pc =3D 0xfffffc000045570c
ra =3D 0xfffffc0000455700
sp =3D 0xfffffe0008021ce0
usp =3D 0x11ffccd8
curthread =3D 0xfffffc00014e84c0
pid =3D 4214, comm =3D bzip2
Stopped at ast+0x3ec: ldq t0,0x88(t1) <0xfffffe0007f9c088> =
<t0=3D0xcfa0,t1=3D0xfffffe0007f9c00>
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