On 22.06.2013 04:30, Alexander Chernyh wrote:
> Дд
> 
> помогите разобратся почему сервак рибутнулся. в логах это
> 
> Jun 21 23:39:42 ab kernel: Fatal trap 12: page fault while in kernel mode
> Jun 21 23:39:42 ab kernel: cpuid = 0; apic id = 00
> Jun 21 23:39:42 ab kernel: fault virtual address        = 0xaaaaab4
> Jun 21 23:39:42 ab kernel: fault code           = supervisor write, page 
> not present
> Jun 21 23:39:42 ab kernel: instruction pointer  = 0x20:0xc09aa853
> Jun 21 23:39:42 ab kernel: stack pointer                = 0x28:0xe7dfdb40
> Jun 21 23:39:42 ab kernel: frame pointer                = 0x28:0xe7dfdb4c
> Jun 21 23:39:42 ab kernel: code segment         = base 0x0, limit 
> 0xfffff, type 0x1b
> Jun 21 23:39:42 ab kernel: = DPL 0, pres 1, def32 1, gran 1
> Jun 21 23:39:42 ab kernel: processor eflags     = interrupt enabled, 
> resume, IOPL = 0
> Jun 21 23:39:42 ab kernel: current process              = 21054 
> (drweb-icapd)
> Jun 21 23:39:42 ab kernel: trap number          = 12
> Jun 21 23:39:42 ab kernel: panic: page fault
> Jun 21 23:39:42 ab kernel: cpuid = 0
> Jun 21 23:39:42 ab kernel: KDB: stack backtrace:
> Jun 21 23:39:42 ab kernel: #0 0xc06a9d9f at kdb_backtrace+0x4f
> Jun 21 23:39:42 ab kernel: #1 0xc0675f7f at panic+0x16f
> Jun 21 23:39:42 ab kernel: #2 0xc09b3633 at trap_fatal+0x323
> Jun 21 23:39:42 ab kernel: #3 0xc09b3719 at trap_pfault+0xd9
> Jun 21 23:39:42 ab kernel: #4 0xc09b466d at trap+0x43d
> Jun 21 23:39:42 ab kernel: #5 0xc099df4c at calltrap+0x6
> Jun 21 23:39:42 ab kernel: #6 0xc09aa942 at pmap_pvh_free+0x52
> Jun 21 23:39:42 ab kernel: #7 0xc09ac412 at pmap_remove_pte+0x92
> Jun 21 23:39:42 ab kernel: #8 0xc09ae364 at pmap_remove+0x1b4
> Jun 21 23:39:42 ab kernel: #9 0xc095dd49 at vm_map_delete+0x199
> Jun 21 23:39:42 ab kernel: #10 0xc0964055 at sys_munmap+0xf5
> Jun 21 23:39:42 ab kernel: #11 0xc09b3d8a at syscall+0x34a
> Jun 21 23:39:42 ab kernel: #12 0xc099dfb1 at Xint0x80_syscall+0x21

Из-за бага в ядре. Версию системы предлагается телепатировать?

По делу - читать 
http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html

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