Still something wrong with tcp_sack_option ()

From: Andrey Chernov (ache_at_nagual.pp.ru)
Date: 06/08/05

  • Next message: Mohan Srinivasan: "Re: Still something wrong with tcp_sack_option ()" 
    Date: Wed, 8 Jun 2005 04:52:08 +0400
To: current@freebsd.org

    With very recent kernel I have a panic once per several hours, always in
    swi1:net, always something called from tcp_sack_option (), see
    example below:

    Fatal trap 12: page fault while in kernel mode
    fault virtual address = 0x4
    fault code = supervisor read, page not present
    instruction pointer = 0x20:0xc0539f12
    stack pointer = 0x28:0xcc7e4a8c
    frame pointer = 0x28:0xcc7e4adc
    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 = 29 (swi1: net)
    trap number = 12
    panic: page fault

    #5 0xc05ccea0 in trap ()
    #6 0xc05bdf0a in calltrap ()
    #7 0xcc7e0008 in ?? ()
    #8 0x00000028 in ?? ()
    #9 0x00000028 in ?? ()
    #10 0x00000000 in ?? ()
    #11 0xc1a9e1cc in ?? ()
    #12 0xcc7e4adc in ?? ()
    #13 0xcc7e4a78 in ?? ()
    #14 0xcc7e4ab0 in ?? ()
    #15 0xc1129000 in ?? ()
    #16 0x7e56b4a9 in ?? ()
    #17 0xcc7e4ab0 in ?? ()
    #18 0x0000000c in ?? ()
    #19 0x00000000 in ?? ()
    #20 0xc0539f12 in tcp_sack_option () 

    -- 
http://ache.pp.ru/
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  • Next message: Mohan Srinivasan: "Re: Still something wrong with tcp_sack_option ()"

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