Date: Sat, 02 Aug 2003 01:29:22 -0500 From: "Alan L. Cox" <alc@imimic.com> To: Kris Kennaway <kris@obsecurity.org> Cc: current@FreeBSD.org Subject: Re: panic: vm_fault: fault on nofault entry, addr: fffffe0007e8e000 Message-ID: <3F2B5A42.4E97D689@imimic.com> References: <20030731084859.GB36327@rot13.obsecurity.org> <20030731204842.GA14640@rot13.obsecurity.org> <20030801030411.GA16725@rot13.obsecurity.org> <20030802060412.GA24469@rot13.obsecurity.org>
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Kris Kennaway wrote: > > On Thu, Jul 31, 2003 at 08:04:11PM -0700, Kris Kennaway wrote: > > On Thu, Jul 31, 2003 at 01:48:42PM -0700, Kris Kennaway wrote: > > > > > > I upgraded the alpha package machines tonight, and one of them fell > > > > over shortly after taking load, with the following: > > > > > > > > panic: vm_fault: fault on nofault entry, addr: fffffe0007e8e000 > > > > > Two more panics on alpha: > > > > > > panic: vm_fault: fault on nofault entry, addr: fffffe0007fde000 > > > > > fatal kernel trap: > > > > > > trap entry = 0x2 (memory management fault) > > > > I'm also seeing a lot of random corruption going on on the alpha > > machines (these packages build successfully if I retry): > > Another one: > > panic: vm_fault: fault on nofault entry, addr: fffffe0007fbe000 > 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() at bcopy+0x14 > 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 --- > Could you please do an objdump -d on sys_pipe.o (or similar) to verify that pipe_read+0x290 is the second call to uiomove() in pipe_read()? Alan
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