On 6/6/09, ge...@dts.su <ge...@dts.su> wrote: > Hello, Freebsd-questions. > > After one of new crash I have this: > > GNU gdb 6.1.1 [FreeBSD] > Copyright 2004 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 "amd64-marcel-freebsd"... > > Unread portion of the kernel message buffer: > > > Fatal trap 12: page fault while in kernel mode > cpuid = 2; apic id = 02 > fault virtual address = 0x0 > fault code = supervisor read data, page not present > instruction pointer = 0x8:0xffffffff804c4eb8 > stack pointer = 0x10:0xffffff807a0478f0 > frame pointer = 0x10:0xffffff807a047930 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 32668 (perl5.10.0) > Physical memory: 4082 MB > Dumping 1647 MB: 1632 1616 1600 1584 1568 1552 1536 1520 1504 1488 1472 1456 > 1440 1424 1408 1392 1376 1360 1344 1328 1312 1296 1280 1264 1248 1232 1216 > 1200 1184 1168 1152 1136 1120 1104 1088 1072 1056 1040 1024 1008 992 976 960 > 944 928 912 896 880 864 848 832 816 800 784 768 752 736 720 704 688 672 656 > 640 624 608 592 576 560 544 528 512 496 480 464 448 432 416 400 384 368 352 > 336 320 304 288 272 256 240 224 208 192 176 160 144 128 112 96 80 64 48 32 > 16 > > Reading symbols from /boot/kernel/accf_http.ko...Reading symbols from > /boot/kernel/accf_http.ko.symbols...done. > done. > Loaded symbols for /boot/kernel/accf_http.ko > #0 doadump () at pcpu.h:195 > 195 __asm __volatile("movq %%gs:0,%0" : "=r" (td)); > (kgdb) list *0xffffffff804c4eb8 > 0xffffffff804c4eb8 is in pfs_ioctl > (/usr/src/sys/fs/pseudofs/pseudofs_vnops.c:265). > 260 static int > 261 pfs_ioctl(struct vop_ioctl_args *va) > 262 { > 263 struct vnode *vn = va->a_vp; > 264 struct pfs_vdata *pvd = vn->v_data; > 265 struct pfs_node *pn = pvd->pvd_pn; > 266 struct proc *proc; > 267 int error; > 268 > 269 PFS_TRACE(("%s: %lx", pn->pn_name, va->a_command)); > (kgdb) backtrace > #0 doadump () at pcpu.h:195 > #1 0xffffffff801c8dac in db_fncall (dummy1=Variable "dummy1" is not > available. > ) at /usr/src/sys/ddb/db_command.c:516 > #2 0xffffffff801c92df in db_command (last_cmdp=0xffffffff80b30c88, > cmd_table=0x0, dopager=1) at /usr/src/sys/ddb/db_command.c:413 > #3 0xffffffff801c94f0 in db_command_loop () at > /usr/src/sys/ddb/db_command.c:466 > #4 0xffffffff801cb0d9 in db_trap (type=Variable "type" is not available. > ) at /usr/src/sys/ddb/db_main.c:228 > #5 0xffffffff80554e55 in kdb_trap (type=12, code=0, tf=0xffffff807a047840) > at /usr/src/sys/kern/subr_kdb.c:524 > #6 0xffffffff807fae80 in trap_fatal (frame=0xffffff807a047840, eva=Variable > "eva" is not available. > ) at /usr/src/sys/amd64/amd64/trap.c:752 > #7 0xffffffff807fb254 in trap_pfault (frame=0xffffff807a047840, usermode=0) > at /usr/src/sys/amd64/amd64/trap.c:673 > #8 0xffffffff807fbc02 in trap (frame=0xffffff807a047840) at > /usr/src/sys/amd64/amd64/trap.c:444 > #9 0xffffffff807df35e in calltrap () at > /usr/src/sys/amd64/amd64/exception.S:209 > #10 0xffffffff804c4eb8 in pfs_ioctl (va=0xffffff807a047a10) at > /usr/src/sys/fs/pseudofs/pseudofs_vnops.c:264 > #11 0xffffffff805bb1d3 in vn_ioctl (fp=Variable "fp" is not available. > ) at vnode_if.h:437 > #12 0xffffffff80562d02 in kern_ioctl (td=0xffffff0006682000, fd=3, > com=1076655123, data=0xffffff00ad2b7d40 "") at file.h:269 > #13 0xffffffff80563029 in ioctl (td=0xffffff0006682000, > uap=0xffffff807a047bf0) at /usr/src/sys/kern/sys_generic.c:571 > #14 0xffffffff807fb4d6 in syscall (frame=0xffffff807a047c80) at > /usr/src/sys/amd64/amd64/trap.c:900 > #15 0xffffffff807df56b in Xfast_syscall () at > /usr/src/sys/amd64/amd64/exception.S:330 > #16 0x0000000800c9c0ec in ?? () > Previous frame inner to this frame (corrupt stack?) > (kgdb) > > > Can You help me? What can I do? Server crash periodicaly...
Add more debug options to kernel, because dump is not useful with corrupted stack. >> For this question, you must debug the kernel by Serial. >> when fatal, you use find the error by command "bt". > >> ------------------ >> Dean >> 2009-06-02 > >> ------------------------------------------------------------- >> 发件人:georg >> 发送日期:2009-06-02 14:51:45 >> 收件人:freebsd-questions >> 抄送: >> 主题:fatal trap 12 > >> Hello, Freebsd-questions. > >> I use FreeBSD 7.2-STABLE amd64. About month ago system was crashed >> with "Fatal trap 12"... >> I bay new hardware and install new FreeBSD 7.2-STABLE amd64. cPanel >> and ASSP (anti spam proxy). And one a day or two days have this: > >> Fatal trap 12: page fault while in kernel mode >> cpuid: = 0; apic id = 00 >> fault virtual address = 0x8000000000 >> fault code = supervisor write data, page not present >> instruction pointer = 0x8:0xffffffff8018b839 >> stack pointer = 0x10:0xffffff807a25d190 >> frame pointer = 0x10:0xea5f >> code segment = base 0x0, limit 0xfffff, type 0x1b >> = DPL 0, pres 1, long 1, def32 0, gran 1 >> processor eflags = interrupt enabled, resume, IOPL = 0 >> current process = 59397 (perl5.10.0) >> trap number = 12 > >> And alway, after crash, I see "current process = perl5.10.0"... > >> Can You help me? > > > -- > Regards, mailto:ge...@dts.su > Yura > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org" > -- Paul _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"