Re: PF LOR and panic
From: Max Laier (max_at_love2party.net)
Date: 08/23/04
- Previous message: M. Warner Losh: "Re: uhid recently broken"
- In reply to: Christian Brueffer: "PF LOR and panic"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
To: freebsd-current@freebsd.org Date: Mon, 23 Aug 2004 19:04:00 +0200
On Monday 23 August 2004 14:04, Christian Brueffer wrote:
> Hi,
>
> got this LOR and panic with a 5.3-BETA1 kernel from yesterday on a SMP
> machine. Can't say how much time there was between them. A dump is
> available.
Good. Keep it in a warm and save place, I'll find you on IRC (I hope).
> lock order reversal
> 1st 0xc0739f20 pf task mtx (pf task mtx) @
> /usr/home/build/src/sys/contrib/pf/net/pf.c:5828
> 2nd 0xc103a4c4 user map (user map) @
> /usr/home/build/src/sys/vm/vm_map.c:2997
> KDB: stack backtrace:
> kdb_backtrace(0,ffffffff,c074a9d8,c074bb08,c071a56c) at
> kdb_backtrace+0x29
> witness_checkorder(c103a4c4,9,c06f826b,bb5) at witness_checkorder+0x540
> _sx_xlock(c103a4c4,c06f826b,bb5) at _sx_xlock+0x50
> _vm_map_lock_read(c103a480,c06f826b,bb5,2000000,c) at
> _vm_map_lock_read+0x3b
> vm_map_lookup(d41f7a8c,d21f7000,2,d41f7a90,d41f7a80) at
> vm_map_lookup+0x26
> vm_fault(c103a000,d21f7000,2,0,c1969160) at vm_fault+0x6a
> trap_pfault(d41f7b54,0,d21f7bac) at trap_pfault+0x11c
> trap(18,10,10,c3e24850,c1aa3c00) at trap+0x321
> calltrap() at calltrap+0x5
> --- trap 0xc, eip = 0xc0459c46, esp = 0xd41f7b94, ebp = 0xd41f7c58 ---
The LOR is a result of the trap so we can forget about it for the moment.
> pf_test(1,c1a38800,d41f7c8c,c1f42820,c0771fe0) at pf_test+0x3c6
> pf_check_in(0,d41f7c8c,c1a38800,1,c3e24800) at pf_check_in+0x32
> pfil_run_hooks(c0771fe0,d41f7cd4,c1a38800,1) at pfil_run_hooks+0xac
> ip_input(c3e24800) at ip_input+0x25f
> netisr_processqueue(c076fcb8) at netisr_processqueue+0x6e
> swi_net(0) at swi_net+0x89
> ithread_loop(c1962b80,d41f7d48,c1962b80,c0500660,0) at
> ithread_loop+0x126
> fork_exit(c0500660,c1962b80,d41f7d48) at fork_exit+0xa8
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xd41f7d7c, ebp = 0 ---
>
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 1; apic id = 01
> fault virtual address = 0xd21f7bac
> fault code = supervisor write, page not present
> instruction pointer = 0x8:0xc0459c46
> stack pointer = 0x10:0xd41f7b94
> frame pointer = 0x10:0xd41f7c58
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 38 (swi1: net)
> [thread 100012]
> Stopped at pf_test+0x3c6: movl %edx,-0xac(%ebp)
> db> tr
> pf_test(1,c1a38800,d41f7c8c,c1f42820,c0771fe0) at pf_test+0x3c6
hmmm ... pf_test+0x3c6 is something *very* different on my objects right now.
Can you sent me your pf.o (possibly with debugging symbols).
> pf_check_in(0,d41f7c8c,c1a38800,1,c3e24800) at pf_check_in+0x32
> pfil_run_hooks(c0771fe0,d41f7cd4,c1a38800,1) at pfil_run_hooks+0xac
> ip_input(c3e24800) at ip_input+0x25f
> netisr_processqueue(c076fcb8) at netisr_processqueue+0x6e
> swi_net(0) at swi_net+0x89
> ithread_loop(c1962b80,d41f7d48,c1962b80,c0500660,0) at
> ithread_loop+0x126
> fork_exit(c0500660,c1962b80,d41f7d48) at fork_exit+0xa8
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xd41f7d7c, ebp = 0 ---
Thanks in advance.
-- /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News
- application/pgp-signature attachment: signature
- Previous message: M. Warner Losh: "Re: uhid recently broken"
- In reply to: Christian Brueffer: "PF LOR and panic"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Relevant Pages
|
|
