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Date:      Fri, 7 Aug 2009 16:37:07 +0400
From:      pluknet <pluknet@gmail.com>
To:        Kostik Belousov <kostikbel@gmail.com>
Cc:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: panic in vgonel()
Message-ID:  <a31046fc0908070537h713d412cm870878c116ba2ee4@mail.gmail.com>
In-Reply-To: <20090807115309.GW1884@deviant.kiev.zoral.com.ua>
References:  <a31046fc0908070437p2b1c96denf24268ce52107a34@mail.gmail.com> <20090807115309.GW1884@deviant.kiev.zoral.com.ua>

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2009/8/7 Kostik Belousov <kostikbel@gmail.com>:
> On Fri, Aug 07, 2009 at 03:37:11PM +0400, pluknet wrote:
>> This is on 7.2-R amd64.
>>
>> I'm curious if it might be due to glusterfs on it.
>>
>> Fatal trap 12: page fault while in kernel mode
>> cpuid = 3; apic id = 03
>> fault virtual address   = 0x0
>> fault code              = supervisor write data, page not present
>> instruction pointer     = 0x8:0xffffffff805a52ba
>> stack pointer           = 0x10:0xfffffffefc3474a0
>> frame pointer           = 0x10:0xfffffffefc347510
>> code segment            = base 0x0, limit 0xfffff, type
>>                         = DPL 0, pres 1, long 1, def32 0, gran 1
>> processor eflags        = interrupt enabled, resume, IOPL = 0
>> current process         = 35425 (find)
>>
>> db> bt
>> Tracing pid 35425 tid 100194 td 0xffffff003c165370
>> vgonel() at vgonel+0x1aa
>> vnlru_free() at vnlru_free+0x36c
>> getnewvnode() at getnewvnode+0x281
>> ffs_vgetf() at ffs_vgetf+0xdf
>> ufs_lookup() at ufs_lookup+0x2dd
>> vfs_cache_lookup() at vfs_cache_lookup+0xf3
>> VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0x40
>> lookup() at lookup+0x598
>> namei() at namei+0x33e
>> kern_lstat() at kern_lstat+0x5e
>> lstat() at lstat+0x2a
>> syscall() at syscall+0x256
>> Xfast_syscall() at Xfast_syscall+0xab
>> --- syscall (190, FreeBSD ELF64, lstat), rip = 0x80071063c, rsp =
>> 0x7fffffffea48, rbp = 0x800a06910 ---
>
> Did you got the vmcore ? If yes, please find the value for vgonel()
> argument, vp, and print the vnode content.

I didn't. Same problem as in my another mail. :(

>
> Regardless of this, look up the source line for vgonel+0x1aa.
>

I could resolve only address which belongs to instruction pointer
= 0x8:0xffffffff805a52ba
(eh, I don't know if I should sum these numbers, so I did this for both cases):

dev2# addr2line -e /boot/kernel/kernel.symbols 0xffffffff805a52ba
/usr/src/sys/kern/vfs_subr.c:979
delmntque():        TAILQ_REMOVE(&mp->mnt_nvnodelist, vp, v_nmntvnodes);

dev2# addr2line -e /boot/kernel/kernel.symbols 0xffffffff805a52c2
/usr/src/sys/kern/vfs_subr.c:981
delmntque():        MNT_REL(mp);

-- 
wbr,
pluknet



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