Date: Fri, 24 Feb 2012 17:02:59 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Hiroki Sato <hrs@freebsd.org> Cc: stable@freebsd.org Subject: Re: another panic in 8.3-PRERELEASE Message-ID: <20120224150259.GV55074@deviant.kiev.zoral.com.ua> In-Reply-To: <20120224143336.GS55074@deviant.kiev.zoral.com.ua> References: <20120223.234558.1101656075598772176.hrs@allbsd.org> <20120224143336.GS55074@deviant.kiev.zoral.com.ua>
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[-- Attachment #1 --] On Fri, Feb 24, 2012 at 04:33:36PM +0200, Konstantin Belousov wrote: > On Thu, Feb 23, 2012 at 11:45:58PM +0900, Hiroki Sato wrote: > > Hi, > > > > This is another reproducible panic. This seems to happen only when > > top(1) is running for a long time (a sysctl() call for > > CTL_KERN.KERN_PROC.KERN_PROC_PROC MIB triggered it). > > > > ---- > > pool.allbsd.org dumped core - see /var/crash/vmcore.0 > > > > Thu Feb 23 23:21:52 JST 2012 > > > > FreeBSD pool.allbsd.org 8.3-PRERELEASE FreeBSD 8.3-PRERELEASE #8: Thu Feb 23 04:40:54 JST 2012 hrs@pool.allbsd.org:/usr/obj/usr/src/sys/POOL amd64 > > > > panic: > > > > 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 = 4; apic id = 04 > > fault virtual address = 0x800e96000 > > fault code = supervisor write data, protection violation > > instruction pointer = 0x20:0xffffffff809440cb > > stack pointer = 0x28:0xffffff86c63890b0 > > frame pointer = 0x28:0xffffff86c6389100 > > 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 = 47211 (top) > > lock order reversal: (Giant after non-sleepable) > > 1st 0xffffff0244b85568 process lock (process lock) @ /usr/src/sys/kern/kern_proc.c:1211 > > 2nd 0xffffffff80d74c80 Giant (Giant) @ /usr/src/sys/dev/usb/input/ukbd.c:2018 > > KDB: stack backtrace: > > Dumping 23903 out of 24550 MB:..1%..11%..21%..31% (CTRL-C to abort) (CTRL-C to abort) ..41%..51%..61%..71%..81%..91% > > > > Reading symbols from /boot/kernel/geom_mirror.ko...Reading symbols from /boot/kernel/geom_mirror.ko.symbols...done. > > done. > > Loaded symbols for /boot/kernel/geom_mirror.ko > > Reading symbols from /boot/kernel/zfs.ko...Reading symbols from /boot/kernel/zfs.ko.symbols...done. > > done. > > Loaded symbols for /boot/kernel/zfs.ko > > Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from /boot/kernel/opensolaris.ko.symbols...done. > > done. > > Loaded symbols for /boot/kernel/opensolaris.ko > > Reading symbols from /boot/kernel/ipfw.ko...Reading symbols from /boot/kernel/ipfw.ko.symbols...done. > > done. > > Loaded symbols for /boot/kernel/ipfw.ko > > #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:263 > > 263 if (textdump_pending) > > (kgdb) #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:263 > > #1 0xffffffff801f8cfc in db_fncall (dummy1=Variable "dummy1" is not available. > > ) > > at /usr/src/sys/ddb/db_command.c:548 > > #2 0xffffffff801f9031 in db_command (last_cmdp=0xffffffff80d37f40, cmd_table=Variable "cmd_table" is not available. > > > > ) at /usr/src/sys/ddb/db_command.c:445 > > #3 0xffffffff801f9280 in db_command_loop () > > at /usr/src/sys/ddb/db_command.c:498 > > #4 0xffffffff801fb369 in db_trap (type=Variable "type" is not available. > > ) at /usr/src/sys/ddb/db_main.c:229 > > #5 0xffffffff8069dff1 in kdb_trap (type=12, code=0, tf=0xffffff86c6389000) > > at /usr/src/sys/kern/subr_kdb.c:548 > > #6 0xffffffff809461ed in trap_fatal (frame=0xffffff86c6389000, eva=Variable "eva" is not available. > > ) > > at /usr/src/sys/amd64/amd64/trap.c:820 > > #7 0xffffffff809468b5 in trap (frame=0xffffff86c6389000) > > at /usr/src/sys/amd64/amd64/trap.c:326 > > #8 0xffffffff8092d2f4 in calltrap () > > at /usr/src/sys/amd64/amd64/exception.S:228 > > #9 0xffffffff809440cb in copyout () at /usr/src/sys/amd64/amd64/support.S:258 > > #10 0xffffffff80675f1f in sysctl_old_user (req=0xffffff86c63899c0, > > p=0xffffff86c6389470, l=1088) at /usr/src/sys/kern/kern_sysctl.c:1276 > > #11 0xffffffff8065f6a6 in sysctl_out_proc_copyout (ki=0xffffff86c6389470, > > req=0xffffff86c63899c0) at /usr/src/sys/kern/kern_proc.c:1085 > > #12 0xffffffff8065ff6c in sysctl_out_proc (p=0xffffff0244b85470, > > req=0xffffff86c63899c0, flags=Variable "flags" is not available. > > ) at /usr/src/sys/kern/kern_proc.c:1114 > > #13 0xffffffff8066245e in sysctl_kern_proc (oidp=Variable "oidp" is not available. > > ) > > at /usr/src/sys/kern/kern_proc.c:1302 > > #14 0xffffffff806756e8 in sysctl_root (oidp=Variable "oidp" is not available. > > ) > > at /usr/src/sys/kern/kern_sysctl.c:1455 > > #15 0xffffffff8067598e in userland_sysctl (td=0x0, name=0xffffff86c6389a80, > > namelen=3, old=0x800e96000, oldlenp=Variable "oldlenp" is not available. > > ) > > at /usr/src/sys/kern/kern_sysctl.c:1565 > > #16 0xffffffff80675e3a in __sysctl (td=0xffffff0396ec5460, > > uap=0xffffff86c6389bc0) at /usr/src/sys/kern/kern_sysctl.c:1491 > > #17 0xffffffff80945809 in amd64_syscall (td=0xffffff0396ec5460, traced=0) > > at subr_syscall.c:114 > > #18 0xffffffff8092d5ec in Xfast_syscall () > > at /usr/src/sys/amd64/amd64/exception.S:387 > > #19 0x0000000800abecfc in ?? () > > Previous frame inner to this frame (corrupt stack?) > > (kgdb) > Can you, please, print out the content of *td, e.g. from the frame 16 ? And *req from the frame 11, please. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAk9HpqMACgkQC3+MBN1Mb4haPACg1OMlMG3fL2nMLI1hPRaXK+GG ai8An0yAPnel+UGbTTltcYmCUdDQaGZZ =6UyI -----END PGP SIGNATURE-----
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