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Date:      Mon, 27 Feb 2012 11:37:17 +0200
From:      Andriy Gapon <avg@FreeBSD.org>
To:        Stefan Bethke <stb@lassitu.de>
Cc:        "freebsd-stable@freebsd.org List" <freebsd-stable@FreeBSD.org>
Subject:   Re: panic: GPF in kernel
Message-ID:  <4F4B4ECD.8080108@FreeBSD.org>
In-Reply-To: <A168A678-38A0-45D5-9353-CF8663E7E275@lassitu.de>
References:  <A168A678-38A0-45D5-9353-CF8663E7E275@lassitu.de>

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on 27/02/2012 09:39 Stefan Bethke said the following:
> Setting up new hardware (i5 CPU, 16 GB RAM) and doing a burn-in test running make buildworld in a loop.  After a couple of hours, I got this panic.  8-stable is from January, ZFS root.
> 
> Does this correlate with any recently fixed bugs, or is this likely a hardware issue?

The latter seems more likely.

> # uname -a
> FreeBSD dhcp62.lassitu.de 8.2-STABLE FreeBSD 8.2-STABLE #0: Fri Feb 24 23:22:57 UTC 2012     root@dhcp62.lassitu.de:/usr/obj/freebsd/checkout/src/sys/EISENBOOT  amd64
> 
> 
> Fatal trap 9: general protection fault while in kernel mode
> cpuid = 3; apic id = 06
> instruction pointer	= 0x20:0xffffffff805460c5
> stack pointer	        = 0x28:0xffffff84830119d0
> frame pointer	        = 0x28:0xffffff8483011a60
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process		= 38198 (cc1)
> trap number		= 9
> panic: general protection fault
> cpuid = 3
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
> kdb_backtrace() at kdb_backtrace+0x37
> panic() at panic+0x187
> trap_fatal() at trap_fatal+0x290
> trap() at trap+0x180
> calltrap() at calltrap+0x8
> --- trap 0x9, rip = 0xffffffff805460c5, rsp = 0xffffff84830119d0, rbp = 0xffffff8483011a60 ---
> pmap_remove_pages() at pmap_remove_pages+0x275
> vmspace_exit() at vmspace_exit+0x9a
> exit1() at exit1+0x3b3
> sys_exit() at sys_exit+0xe
> amd64_syscall() at amd64_syscall+0x24f
> Xfast_syscall() at Xfast_syscall+0xfc
> --- syscall (1, FreeBSD ELF64, sys_exit), rip = 0x84ba3c, rsp = 0x7fffffffdf68, rbp = 0x7fffffffdfa0 ---
> 
> 
> 
> (kgdb) bt
> #0  doadump () at /freebsd/checkout/src/sys/kern/kern_shutdown.c:263
> #1  0xffffffff802eab00 in boot (howto=260)
>     at /freebsd/checkout/src/sys/kern/kern_shutdown.c:441
> #2  0xffffffff802eafa1 in panic (fmt=Variable "fmt" is not available.
> )
>     at /freebsd/checkout/src/sys/kern/kern_shutdown.c:614
> #3  0xffffffff8054dc80 in trap_fatal (frame=0x9, eva=Variable "eva" is not available.
> )
>     at /freebsd/checkout/src/sys/amd64/amd64/trap.c:825
> #4  0xffffffff8054e2a0 in trap (frame=0xffffff8483011920)
>     at /freebsd/checkout/src/sys/amd64/amd64/trap.c:621
> #5  0xffffffff80534cb8 in calltrap ()
>     at /freebsd/checkout/src/sys/amd64/amd64/exception.S:228
> #6  0xffffffff805460c5 in pmap_remove_pages (pmap=0xffffff01982838d8)
>     at /freebsd/checkout/src/sys/amd64/amd64/pmap.c:4087
> #7  0xffffffff8051a61a in vmspace_exit (td=0xffffff017efca8a0)
>     at /freebsd/checkout/src/sys/vm/vm_map.c:405
> #8  0xffffffff802b93d3 in exit1 (td=0xffffff017efca8a0, rv=Variable "rv" is not available.
> )
>     at /freebsd/checkout/src/sys/kern/kern_exit.c:298
> #9  0xffffffff802ba61e in sys_exit (td=Variable "td" is not available.
> )
>     at /freebsd/checkout/src/sys/kern/kern_exit.c:106
> #10 0xffffffff8054d1ff in amd64_syscall (td=0xffffff017efca8a0, traced=0)
>     at subr_syscall.c:114
> #11 0xffffffff80534fac in Xfast_syscall ()
>     at /freebsd/checkout/src/sys/amd64/amd64/exception.S:387
> #12 0x000000000084ba3c in ?? ()
> Previous frame inner to this frame (corrupt stack?)
> (kgdb) 
> 


-- 
Andriy Gapon



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