Date: Thu, 07 Oct 2004 10:54:55 -0700 From: Sean McNeil <sean@mcneil.com> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-current@freebsd.org Subject: Re: current/amd64 panic is back Message-ID: <1097171694.4190.18.camel@server> In-Reply-To: <20041007173501.GA7114@xor.obsecurity.org> References: <1097170117.1288.1.camel@server> <20041007173501.GA7114@xor.obsecurity.org>
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[-- Attachment #1 --]
On Thu, 2004-10-07 at 10:35, Kris Kennaway wrote:
> On Thu, Oct 07, 2004 at 10:28:37AM -0700, Sean McNeil wrote:
> > First unsolicited crash for me in a long time :)
>
> Traceback, etc.
Sorry, this was a bad report. Thought it might be a regression in the
preemption stuff, but still I should have provided more info than I
did. Let me give what I can and you can let me know if there is
anything more I can provide. I get a long string of panic info but no
core dump or drop into debugger. Just a reboot. I tried to look at the
address in the debugger and this is what I get:
(gdb) list *0xffffffff80351940
0xffffffff80351940 is in m_copym (/usr/src/sys/kern/uipc_mbuf.c:373).
368 MBUF_CHECKSLEEP(wait);
369 if (off == 0 && m->m_flags & M_PKTHDR)
370 copyhdr = 1;
371 while (off > 0) {
372 KASSERT(m != NULL, ("m_copym, offset > size of mbuf chain"));
373 if (off < m->m_len)
374 break;
375 off -= m->m_len;
376 m = m->m_next;
377 }
I think it goes off into lala land after that. Here is the full panic.
Oct 7 09:52:31 server syslogd: kernel boot file is /boot/kernel/kernel
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 12: page fault while in kernel mode
Oct 7 09:52:31 server kernel: fault virtual address = 0x18
Oct 7 09:52:31 server kernel: fault code = supervisor read, page not present
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff80351940
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c1a5f0
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c1a650
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 12
Oct 7 09:52:31 server kernel: panic: page fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c1a310
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c1a320
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = interrupt enabled, IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c1a090
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c1a0a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19e10
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c19e20
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19b90
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c19ba0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19910
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c19920
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19690
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c196a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19410
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c19420
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c19190
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c191a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18f10
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c18f20
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18c90
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c18ca0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18a10
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c18a20
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18790
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c187a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18510
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c18520
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18290
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c182a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c18010
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c18020
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c17d90
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c17da0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c17b10
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c17b20
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c17890
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c178a0
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel:
Oct 7 09:52:31 server kernel: Fatal trap 3: breakpoint instruction fault while in kernel mode
Oct 7 09:52:31 server kernel: instruction pointer = 0x8:0xffffffff8032e14f
Oct 7 09:52:31 server kernel: stack pointer = 0x10:0xffffffffb1c17610
Oct 7 09:52:31 server kernel: frame pointer = 0x10:0xffffffffb1c17620
Oct 7 09:52:31 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 7 09:52:31 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 7 09:52:31 server kernel: processor eflags = IOPL = 0
Oct 7 09:52:31 server kernel: current process = 262 (natd)
Oct 7 09:52:31 server kernel: trap number = 3
Oct 7 09:52:31 server kernel: panic: breakpoint instruction fault
Oct 7 09:52:31 server kernel: KDB: enter: panic
Oct 7 09:52:31 server kernel: Copyright (c) 1992-2004 The FreeBSD Project.
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