Date: Mon, 23 Jun 1997 13:04:48 +0300 (EET DST) From: mika ruohotie <bsdcur@shadows.aeon.net> To: current@freebsd.org Subject: Re: page fault Message-ID: <199706231004.NAA15233@shadows.aeon.net> In-Reply-To: <19970605223427.LN28350@uriah.heep.sax.de> from J Wunsch at "Jun 5, 97 10:34:27 pm"
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[older crash i had]
> > #5 0xf0103e2c in cd9660_getattr (ap=0x0)
> > at ../../isofs/cd9660/cd9660_vnops.c:253
> It looks suspicious regarding your hardware. If you never touched the
> cd9660 filesystem code (which would at least require a previous mount
i caught itcrashing again, with a dump...
(kgdb) symbol-file kernel.debug
Reading symbols from kernel.debug...done.
(kgdb) exec-file /var/crash/kernel.3
(kgdb) core-file /var/crash/vmcore.3
IdlePTD 225000
current pcb at 203374
panic: page fault
(see, i'm learning =) 'config -g' and 'strip -d' used)
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
266 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
#1 0xf011523a in panic (fmt=0xf01c788f "page fault")
at ../../kern/kern_shutdown.c:393
#2 0xf01c853a in trap_fatal (frame=0xf521bca3) at ../../i386/i386/trap.c:773
#3 0xf01c7fe9 in trap_pfault (frame=0xf521bca3, usermode=0)
at ../../i386/i386/trap.c:680
#4 0xf01c7c1b in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -267550720,
tf_esi = -267976704, tf_ebp = -182338293, tf_isp = -182338357,
tf_ebx = 1630872320, tf_edx = 768, tf_ecx = 0, tf_eax = -9021303,
tf_trapno = 12, tf_err = 0, tf_eip = -267370639, tf_cs = 8,
tf_eflags = 66194, tf_esp = -1759011088, tf_ss = 226492656})
at ../../i386/i386/trap.c:319
#5 0xf0103f71 in cd9660_getattr (ap=0x210620f0)
at ../../isofs/cd9660/cd9660_vnops.c:286
#6 0x1d45d8f5 in ?? ()
Cannot access memory at address 0x21bd40f4.
(kgdb) frame 5
#5 0xf0103f71 in cd9660_getattr (ap=0x210620f0)
at ../../isofs/cd9660/cd9660_vnops.c:286
286 vap->va_type = vp->v_type;
this is again as much as it was listing, nothing more.
and it's NOT the first time i see that particular memory address in
a crashing message. (0x21bd40f4)
it's hardware, right?
but if it's the memory, why am i not failing when i make world/kernel,
or artificially fill the ram? just _occasionally_ it crashes the
machine. my box itself is well cooled, there's an extra 80mm fan and
everything feels cool.
> cheers, J"org
mickey
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