Date: Wed, 12 Oct 2005 12:50:11 +0200 From: Emanuel Strobl <Emanuel.strobl@gmx.net> To: freebsd-current@freebsd.org Subject: Ugly BETA5 crashes, VM fault (with trace) Message-ID: <200510121250.20515@harrymail>
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Hello,
my desktop box crashed for severla weeks every few days and since beta5 was=
=20
withoug kdb I had to rebuild a debugging kernel to get this recorded (no=20
dump was written, so nothing in /var/crash)
Like mentioned, I see the crash every view days, I think when having=20
simultaniously NFS and local disk load.
Please tell me if I can provide more info!
=2DHarry
=46atal trap 12: page fault while in kernel mode
fault virtual address =3D 0x5a
fault code =3D supervisor read, page not present
instruction pointer =3D 0x20:0xc06ec5a9
stack pointer =3D 0x28:0xdad2c99c
frame pointer =3D 0x28:0xdad2ca88
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 741 (kdeinit)
[thread pid 741 tid 100102 ]
Stopped at vm_fault+0x239: cmpw $0,0x5a(%eax)
db> trace
Tracing pid 741 tid 100102 td 0xc2470a80
vm_fault(c1443000,c144f000,2,0,c2470a80) at vm_fault+0x239
trap_pfault(dad2cb14,0,c144fff4,dad2cae8,c144fff4) at trap_pfault+0x156
trap(c0790008,28,c0850028,dad2ccb4,2000) at trap+0x38e
calltrap() at calltrap+0x5
=2D-- trap 0xc, eip =3D 0xc06fd0ce, esp =3D 0xdad2cb54, ebp =3D 0xdad2cb68 =
=2D--
vm_page_cowsetup(c144ffb8,0,c079615b,82,dad2cbf4) at vm_page_cowsetup+0x2e
socow_setup(c1ef2300,dad2ccb4,2,2c4,1) at socow_setup+0x98
sosend(c29f4858,0,dad2ccb4,0,0) at sosend+0x56b
soo_write(c284d090,dad2ccb4,c26f5980,0,c2470a80) at soo_write+0x87
dofilewrite(c2470a80,f,c284d090,dad2ccb4,ffffffff) at dofilewrite+0x85
kern_writev(c2470a80,f,dad2ccb4,8100ff4,de10) at kern_writev+0x65
write(c2470a80,dad2cd04,c,422,3) at write+0x4f
syscall(805003b,3b,bfbf003b,805c000,f) at syscall+0x2c0
Xint0x80_syscall() at Xint0x80_syscall+0x1f
=2D-- syscall (4, FreeBSD ELF32, write), eip =3D 0x293791ab, esp =3D 0xbfbf=
e15c,=20
ebp =3D
0xbfbfe178 ---
db>
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