Date: Thu, 8 May 2003 11:05:55 -0400 From: "Robin P. Blanchard" <Robin.Blanchard@gactr.uga.edu> To: <current@freebsd.org> Subject: Fxp / polling / witness panic Message-ID: <EE3D3FBAFFCAED448C21C398FDAD91AC01080C@EBE1.gc.nat>
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Latest sources with following debugging options set yields the panic =
below.
makeoptions DEBUG=3D-g
options KTRACE
options DDB
options DDB_UNATTENDED
options ALT_BREAK_TO_DEBUGGER
options INVARIANTS
options INVARIANT_SUPPORT
options WITNESS
options WITNESS_SKIPSPIN
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:238
238 dumping++;
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:238
#1 0xc01d8133 in boot (howto=3D256) at =
/usr/src/sys/kern/kern_shutdown.c:370
#2 0xc01d847b in panic () at /usr/src/sys/kern/kern_shutdown.c:543
#3 0xc01fb681 in witness_lock (lock=3D0xc1526160, flags=3D8,=20
file=3D0xc0308197 "/usr/src/sys/dev/fxp/if_fxp.c", line=3D1465)
at /usr/src/sys/kern/subr_witness.c:722
#4 0xc01cec71 in _mtx_lock_flags (m=3D0xc151c3fc, opts=3D0,=20
file=3D0xc038be2c "`aR=C1\227\2010=C0=DE\005", line=3D-1051565728)
at /usr/src/sys/kern/kern_mutex.c:332
#5 0xc0180fa7 in fxp_poll (ifp=3D0xc038be2c, cmd=3D3243401568, =
count=3D0)
at /usr/src/sys/dev/fxp/if_fxp.c:1465
#6 0xc0181161 in fxp_intr (xsc=3D0xc1526000) at
/usr/src/sys/dev/fxp/if_fxp.c:1516
#7 0xc01c4f72 in ithread_loop (arg=3D0xc4016200) at
/usr/src/sys/kern/kern_intr.c:537
#8 0xc01c3f60 in fork_exit (callout=3D0xc4014f00, arg=3D0x0, =
frame=3D0x0)
at /usr/src/sys/kern/kern_fork.c:792
---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 <|> fax: 706.542.6546
---------------------------------------
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