On Sun, Feb 20, 2011 at 10:30:52AM -0500, Mike Tancsa wrote: > On 2/20/2011 9:33 AM, Andrey Smagin wrote: > > On week -current I have same problem, my box paniced every 2-15 min. I > > resolve problem by next steps - unplug network connectors from 2 intel em > > (82574L) cards. I think last time that mpd5 related panic, but mpd5 work > > with another re interface interated on MB. I think it may be em related > > panic, or em+mpd5. > > The latest panic I saw didnt have anything to do with em. Are you sure > your crashes are because of the nic drive ? > > The latest I saw was on Friday. > > # kgdb /usr/obj/usr/src/sys/router/kernel.debug vmcore.11 > (kgdb) bt > #0 doadump () at pcpu.h:231 > #1 0xc04a51f9 in db_fncall (dummy1=1, dummy2=0, dummy3=-1063333856, > dummy4=0xc6b9696c "") at /usr/src/sys/ddb/db_command.c:548 > #2 0xc04a55f1 in db_command (last_cmdp=0xc096f73c, cmd_table=0x0, > dopager=1) at /usr/src/sys/ddb/db_command.c:445 > #3 0xc04a574a in db_command_loop () at /usr/src/sys/ddb/db_command.c:498 > #4 0xc04a764d in db_trap (type=12, code=0) at > /usr/src/sys/ddb/db_main.c:229 > #5 0xc068ba7e in kdb_trap (type=12, code=0, tf=0xc6b96b94) at > /usr/src/sys/kern/subr_kdb.c:546 > #6 0xc088056f in trap_fatal (frame=0xc6b96b94, eva=52) at > /usr/src/sys/i386/i386/trap.c:937 > #7 0xc0880830 in trap_pfault (frame=0xc6b96b94, usermode=0, eva=52) at > /usr/src/sys/i386/i386/trap.c:859 > #8 0xc0880d4a in trap (frame=0xc6b96b94) at > /usr/src/sys/i386/i386/trap.c:532 > #9 0xc086716c in calltrap () at /usr/src/sys/i386/i386/exception.s:166 > #10 0xc0657a16 in uihold (uip=0x0) at /usr/src/sys/kern/kern_resource.c:1248 > #11 0xc0654ec9 in crcopy (dest=0xce3ee800, src=0xce3ee600) at > /usr/src/sys/kern/kern_prot.c:1873 > #12 0xc0654fd1 in crcopysafe (p=0xc90cc810, cr=0xce3ee800) at > /usr/src/sys/kern/kern_prot.c:1950 > #13 0xc0656d7f in seteuid (td=0xc9196b80, uap=0xc6b96cec) at > /usr/src/sys/kern/kern_prot.c:615 > #14 0xc06985ff in syscallenter (td=0xc9196b80, sa=0xc6b96ce4) at > /usr/src/sys/kern/subr_trap.c:315 > #15 0xc0880884 in syscall (frame=0xc6b96d28) at > /usr/src/sys/i386/i386/trap.c:1061 > #16 0xc08671d1 in Xint0x80_syscall () at > /usr/src/sys/i386/i386/exception.s:264 > #17 0x00000033 in ?? () > > (kgdb) frame 10 > #10 0xc0657a16 in uihold (uip=0x0) at /usr/src/sys/kern/kern_resource.c:1248 > 1248 { > (kgdb) list > 1243 * Place another refcount on a uidinfo struct. > 1244 */ > 1245 void > 1246 uihold(uip) > 1247 struct uidinfo *uip; > 1248 { > 1249 > 1250 refcount_acquire(&uip->ui_ref); > 1251 } > 1252 > (kgdb) p *uip > Cannot access memory at address 0x0 > (kgdb) p uip > $1 = (struct uidinfo *) 0x0 > (kgdb) Is this reproducable ? What system version is it ?
Could you, please, go to frame 12 and show the output of "p *p", "p *(p->p_ucred)" ?
pgpw4qSDa53Ej.pgp
Description: PGP signature