page fault in e1000_clear_hw_cntrs_base_generic() during SIOCAIFADDR

[John Baldwin]

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