Date: Fri, 04 Apr 2008 10:27:06 +1000 From: Sam Kingston <sam@sjkwi.com.au> To: freebsd-hackers@freebsd.org Cc: sam@sjkwi.com.au Subject: 7.0-RELEASE Kernel Panic in _mtx_lock_sleep() on shutdown Message-ID: <47F575DA.60003@sjkwi.com.au>
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Hi all, I am getting panic()s upon each shutdown (visibly after disks have been synced). kgdb reveals the at /usr/src/sys/kern/kern_mutex.c:335 _mtx_lock_sleep() as the culprit. Running 7.0-RELEASE with root mounted from a ZFS file system. Seems to only have started since creating a second raidz data pool (mia-data), yet dismounting this before shutdown does not stop the panic(). uname: FreeBSD mia.dhcp.sjkwi.com.au 7.0-RELEASE FreeBSD 7.0-RELEASE #1: Sun Mar 2 07:26:17 EST 2008 root@mia.dhcp.sjkwi.com.au:/usr/obj/usr/src/sys/MIA amd64 zpool list: NAME SIZE USED AVAIL CAP HEALTH ALTROOT mia-data 2.03T 1.05T 1003G 51% ONLINE - mia-sys 288G 9.58G 278G 3% ONLINE - panic: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x258 fault code = supervisor read data, page not present instruction pointer = 0x8:0xffffffff802c805a stack pointer = 0x10:0xffffffffb33eb840 frame pointer = 0x10:0xffffff00011109c0 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 = 1 (init) trap number = 12 panic: page fault cpuid = 0 kgdb output: #0 doadump () at pcpu.h:194 #1 0x0000000000000004 in ?? () #2 0xffffffff802d271f in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409 #3 0xffffffff802d2b48 in panic (fmt=0x104 <Address 0x104 out of bounds>) at /usr/src/sys/kern/kern_shutdown.c:563 #4 0xffffffff804a510a in trap_fatal (frame=0xffffff00011109c0, eva=18446742974215805136) at /usr/src/sys/amd64/amd64/trap.c:724 #5 0xffffffff804a54b1 in trap_pfault (frame=0xffffffffb33eb790, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:641 #6 0xffffffff804a5d6f in trap (frame=0xffffffffb33eb790) at /usr/src/sys/amd64/amd64/trap.c:410 #7 0xffffffff8048cbce in calltrap () at /usr/src/sys/amd64/amd64/exception.S:169 #8 0xffffffff802c805a in _mtx_lock_sleep (m=0xffffff00068772d8, tid=18446742974215817664, opts=Variable "opts" is not available. ) at /usr/src/sys/kern/kern_mutex.c:335 #9 0xffffffff803445b3 in vrele (vp=0xffffff00068771f0) at /usr/src/sys/kern/vfs_subr.c:2128 #10 0xffffffff80344b46 in vflush (mp=Variable "mp" is not available. ) at /usr/src/sys/kern/vfs_subr.c:2441 #11 0xffffffff8082e0ac in ?? () #12 0xffffff000636a000 in ?? () #13 0xffffff000636a054 in ?? () #14 0x0000000000005000 in ?? () #15 0x0000000000080000 in ?? () #16 0xffffffffb33eba60 in ?? () #17 0x0000000000000000 in ?? () #18 0xffffff00011109c0 in ?? () #19 0x0000000000080000 in ?? () #20 0x0000000000005000 in ?? () #21 0x0000000000080000 in ?? () #22 0x0000000000000000 in ?? () #23 0xffffffff8033d874 in dounmount (mp=0xffffff0006348ca0, flags=17893824, td=0x80000) at /usr/src/sys/kern/vfs_mount.c:1286 #24 0xffffffff80343129 in vfs_unmountall () at /usr/src/sys/kern/vfs_subr.c:2936 #25 0xffffffff802d297f in boot (howto=8) at /usr/src/sys/kern/kern_shutdown.c:391 #26 0xffffffff802d2c9d in reboot (td=Variable "td" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:169 #27 0xffffffff804a571c in syscall (frame=0xffffffffb33ebc70) at /usr/src/sys/amd64/amd64/trap.c:852 #28 0xffffffff8048cddb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:290 #29 0x000000000040854c in ?? () instruction pointer: #8 0xffffffff802c805a in _mtx_lock_sleep (m=0xffffff00068772d8, tid=18446742974215817664, opts=Variable "opts" is not available. ) at /usr/src/sys/kern/kern_mutex.c:335 dmesg (cut due to long length: http://users.sjkwi.com.au/sam/fbsd/dmesg.txt kernel config (cut due to long length): http://users.sjkwi.com.au/sam/fbsd/MIA Any ideas? -- Kind regards, Sam Kingston SJK Web Industries Email sam@sjkwi.com.au Web http://www.sjkwi.com.au
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