Hello. I just had a panic here. I'm running CURRENT as of 31st of October, platform is i386. I have a crashdump available if anyone wants to take a look at this. Here's some output from gdb -k: eivind_at_vimes:~/tmp/debug/2003-10-31 > gdb -k kernel.debug vmcore.6 GNU gdb 5.2.1 (FreeBSD) Copyright 2002 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-undermydesk-freebsd"... panic: from debugger panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x68 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0647282 stack pointer = 0x10:0xcfe919e0 frame pointer = 0x10:0xcfe91a0c 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 = 326 (named) panic: from debugger Fatal trap 3: breakpoint instruction fault while in kernel mode instruction pointer = 0x8:0xc07f5914 stack pointer = 0x10:0xcfe91794 frame pointer = 0x10:0xcfe917a0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = IOPL = 0 current process = 326 (named) panic: from debugger Uptime: 19h17m7s Fatal trap 12: page fault while in kernel mode fault virtual address = 0x24 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0646edb stack pointer = 0x10:0xcb608aec frame pointer = 0x10:0xcb608b00 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 = 14 (swi1: net) panic: from debugger Uptime: 19h17m8s Dumping 191 MB 16 32 48 64 80 96 112 128 144 160 176 --- Reading symbols from /boot/kernel/vinum.ko...done. Loaded symbols for /boot/kernel/vinum.ko #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240 240 dumping++; (kgdb) bt #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240 #1 0xc0651c90 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372 #2 0xc0652078 in panic () at /usr/src/sys/kern/kern_shutdown.c:550 #3 0xc0476f52 in db_panic () at /usr/src/sys/ddb/db_command.c:450 #4 0xc0476eb2 in db_command (last_cmdp=0xc09050e0, cmd_table=0x0, aux_cmd_tablep=0xc0889714, aux_cmd_tablep_end=0xc088972c) at /usr/src/sys/ddb/db_command.c:346 #5 0xc0476ff5 in db_command_loop () at /usr/src/sys/ddb/db_command.c:472 #6 0xc047a005 in db_trap (type=12, code=0) at /usr/src/sys/ddb/db_trap.c:73 #7 0xc07f565c in kdb_trap (type=12, code=0, regs=0xcfe919a0) at /usr/src/sys/i386/i386/db_interface.c:171 #8 0xc0807b76 in trap_fatal (frame=0xcfe919a0, eva=0) at /usr/src/sys/i386/i386/trap.c:818 #9 0xc0807183 in trap (frame= {tf_fs = -1033306088, tf_es = -1023934448, tf_ds = -806813680, tf_edi = -1030808900, tf_esi = -1030785904, tf_ebp = -806807028, tf_isp = -806807092, tf_ebx = -1033092512, tf_edx = 2, tf_ecx = 0, tf_eax = 1, tf_trapno = 12, tf_err = 0, tf_eip = -1067158910, tf_cs = 8, tf_eflags = 66118, tf_esp = 42062, tf_ss = -806807052}) at /usr/src/sys/i386/i386/trap.c:252 #10 0xc07f7008 in calltrap () at {standard input}:102 #11 0xc06ebab6 in ip_output (m0=0xc26c4260, opt=0xc28f7490, ro=0xc28f1abc, flags=0, imo=0x0, inp=0xc28f1a80) at /usr/src/sys/netinet/ip_output.c:266 #12 0xc06fd2d6 in udp_output (inp=0xc28f1a80, m=0xc1561300, addr=0xc2745660, control=0x0, td=0xc26c4260) at /usr/src/sys/netinet/udp_usrreq.c:847 #13 0xc06fdf81 in udp_send (so=0x0, flags=0, m=0xc155cf00, addr=0x0, control=0x0, td=0x0) at /usr/src/sys/netinet/udp_usrreq.c:1043 #14 0xc06913fd in sosend (so=0xc2913220, addr=0xc2745660, uio=0xcfe91bf4, top=0xc155cf00, control=0x0, flags=0, td=0xc26c4260) at /usr/src/sys/kern/uipc_socket.c:715 #15 0xc0695cdc in kern_sendit (td=0xc26c4260, s=22, mp=0xcfe91ca4, flags=0, control=0x0) at /usr/src/sys/kern/uipc_syscalls.c:722 #16 0xc0695afe in sendit (td=0x0, s=0, mp=0xcfe91ca4, flags=0) at /usr/src/sys/kern/uipc_syscalls.c:662 #17 0xc06960f3 in sendmsg (td=0x0, uap=0xcfe91d10) at /usr/src/sys/kern/uipc_syscalls.c:900 #18 0xc0807f30 in syscall (frame= {tf_fs = 135790639, tf_es = 135856175, tf_ds = -1078001617, tf_edi = 0, tf_esi = 0, tf_ebp = -1077943560, tf_isp = -806806156, tf_ebx = 0, tf_edx = 135876352, tf_ecx = 136334080, tf_eax = 28, tf_trapno = 0, tf_err = 2, tf_eip = 674256815, tf_cs = 31, tf_eflags = 646, tf_esp = -1077943988, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:1012 #19 0xc07f705d in Xint0x80_syscall () at {standard input}:144 ---Can't read userspace from dump, or kernel process--- (kgdb) This is what I got from the kernel debugger: Fatal trap 12: page fault while in kernel mode fault virtual address = 0x68 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0647282 stack pointer = 0x10:0xcfe919e0 frame pointer = 0x10:0xcfe91a0c 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 = 326 (named) kernel: type 12 trap, code=0 Stopped at _mtx_lock_sleep+0x1b2: movl 0x68(%ecx),%edx db> show reg cs 0x8 ds 0xcfe90010 es 0xc2f80010 fs 0xc2690018 ss 0x10 eax 0x1 ecx 0 edx 0x2 ebx 0xc26c4260 esp 0xcfe919e0 ebp 0xcfe91a0c esi 0xc28f7490 edi 0xc28f1abc eip 0xc0647282 _mtx_lock_sleep+0x1b2 efl 0x10246 dr0 0 dr1 0 dr2 0 dr3 0 dr4 0xffff0ff0 dr5 0x400 dr6 0xffff0ff0 dr7 0x400 _mtx_lock_sleep+0x1b2: movl 0x68(%ecx),%edx db> trace _mtx_lock_sleep(c28f7490,0,0,0,0) at _mtx_lock_sleep+0x1b2 ip_output(c1561300,0,c28f1abc,0,0) at ip_input+0x296 udp_output(c28f1a80,c1561300,c2745660,0,c26c4260) at udp_output+0x406 udp_send(c2913220,0,c155cf00,c2745660,0) at udp_send+0x121 sosend(c2913220,c2745660,cfe91bf4,c155cf00,0) at sosend+0x43d kern_sendit(c26c4260,16,cfe91ca4,0,0) at kern_sendit+0x1ac sendit(c26c4260,16,cfe91ca4,0,bfbfe572) at sendit+0x16e sendmsg(c26c4260,cfe91d10,c,c0679a26,3) at sendmsg+0xc3 syscall(818002f,819002f,bfbf002f,0,0) at syscall+0x310 Xint0x80_syscall() at Xint0x80_syscall+0x1d -- syscall (28, FreeBSD ELF32, sendmsg), eip = 0x283057af, esp = 0xbfbfe14c, ebp = 0xbfbfe2f8 --- db> I then had to write "panic" two or three times until it started to do the crashdump. -- Regards / Hilsen Eivind Olsen <eivind_at_aminor.no>Received on Sun Nov 02 2003 - 12:18:38 UTC
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