Date: Wed, 1 Sep 2010 12:06:15 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Cc: pluknet <pluknet@gmail.com> Subject: Re: page fault in e1000_clear_hw_cntrs_base_generic() during SIOCAIFADDR Message-ID: <201009011206.15494.jhb@freebsd.org> In-Reply-To: <AANLkTi=cQF0Ta5scpMBZ6Ba_uj_Zqxu9=2qUv2g=14fp@mail.gmail.com> References: <AANLkTi=cQF0Ta5scpMBZ6Ba_uj_Zqxu9=2qUv2g=14fp@mail.gmail.com>
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On Wednesday, September 01, 2010 11:53:09 am pluknet wrote: > Hi. > > This is reproducible from time to time on boot when > handling SIOCAIFADDR called from ifconfig on igb > on fresh (and not so fresh) 8-STABLE. > > How can I help with debugging? > > Kernel page fault with the following non-sleepable locks held: > exclusive sleep mutex igb0 (IGB Core Lock) r = 0 (0xc2655534) locked @ > /usr/src/sys/modules/igb/../../dev/e1000/if_igb.c:965 > KDB: stack backtrace: > db_trace_self_wrapper(c08b5055,cce577b8,c060db15,3c5,0,...) at > db_trace_self_wrapper+0x26 > kdb_backtrace(3c5,0,ffffffff,c0a94864,cce577f0,...) at kdb_backtrace+0x29 > _witness_debugger(c08b74fe,cce57804,4,1,0,...) at _witness_debugger+0x25 > witness_warn(5,0,c08e3140,cce5782c,c2956000,...) at witness_warn+0x1fe > trap(cce57890) at trap+0x195 > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0xc3192477, esp = 0xcce578d0, ebp = 0xcce578e0 --- > e1000_clear_hw_cntrs_base_generic(c2651004,64,c3185850,c2651000,0,...) > at e1000_clear_hw_cntrs_base_generic+0x3e7 Can you use gdb on your kernel.debug to map this to a source file and line? -- John Baldwin
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