Date: Tue, 13 Oct 2009 07:53:47 GMT From: Henri Hennebert <hlh@restart.be> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/139564: zfs - 8.0-RC1 - Fatal trap 12 at end of shutdown Message-ID: <200910130753.n9D7rla9027023@www.freebsd.org> Resent-Message-ID: <200910130800.n9D8042r061003@freefall.freebsd.org>
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>Number: 139564 >Category: kern >Synopsis: zfs - 8.0-RC1 - Fatal trap 12 at end of shutdown >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Oct 13 08:00:04 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Henri Hennebert >Release: FreeBSD-8.0-RC1 >Organization: >Environment: FreeBSD morzine.restart.bel 8.0-RC1 FreeBSD 8.0-RC1 #0 r197399M: Wed Oct 7 14:18:07 CEST 2009 root@morzine.restart.bel:/usr/obj/usr/src/sys/MORZINE i386 >Description: It seems that every time I use a pool on a USB disk, the next shutdown encounter Fatal trap 12: page fault while in kernel mode in zfsctl_snapshot_inactive: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x64 fault code = supervisor read, page not present instruction pointer = 0x20:0xa0c7b3d2 stack pointer = 0x28:0xa6ae39f0 frame pointer = 0x28:0xa6ae3a3c 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 = 1 (init) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: db_trace_self_wrapper(a092d00c,a6ae3888,a0621cf9,a094ed5d,0,...) at db_trace_self_wrapper+0x26 kdb_backtrace(a094ed5d,0,a090da0b,a6ae3894,0,...) at kdb_backtrace+0x29 panic(a090da0b,a095011d,a6d6aee4,1,1,...) at panic+0x119 trap_fatal(a6d6f000,0,1,0,a0ce3d02,...) at trap_fatal+0x333 trap_pfault(a0983500,a6ae3960,a6ae3960,a6ae394c,a6d68d48,...) at trap_pfault+0x2f0 trap(a6ae39b0) at trap+0x485 calltrap() at calltrap+0x6 --- trap 0xc, eip = 0xa0c7b3d2, esp = 0xa6ae39f0, ebp = 0xa6ae3a3c --- zfsctl_snapshot_inactive(a6ae3a80,a6ae3a7c,a06adda0,b307d1b4,0,...) at zfsctl_snapshot_inactive+0x82 VOP_INACTIVE_APV(a0cefd60,a6ae3a80,a6ae3ab4,1,a6ae3a94,...) at VOP_INACTIVE_APV+0x7c vinactive(a0cefd60,a6ae3ab4,0,0,a0cefd60,...) at vinactive+0x7f vgonel(b307d10c,80100,a0933299,964,d2,...) at vgonel+0x175 vflush(a94aa508,1,2,a6d6ad80,a9432000,...) at vflush+0x3ba zfs_umount(a94aa508,80000,a6ae3be4,4b0,ffffffff,...) at zfs_umount+0xf0 dounmount(a94aa508,80000,a6d6ad80,e6ce5830,0,...) at dounmount+0x4c7 vfs_unmountall(a0932f89,0,a092abe6,118,0,...) at vfs_unmountall+0x33 boot(a6d6ad80,8,a6d6ad80,a0625442,0,...) at boot+0x434 reboot(a6d6ad80,a6ae3cf8,4,0,0,...) at reboot+0x85 syscall(a6ae3d38) at syscall+0x3e5 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (55, FreeBSD ELF32, reboot), eip = 0x8050f83, esp = 0x9fbfe8ac, ebp = 0x9fbfe988 --- Uptime: 5h17m57s Physical memory: 3050 MB Dumping 443 MB: 428 412 396 380 364 348 332 316 300 284 268 252 236 220 204 188 172 156 140 124 108 92 76 60 44 28 12 more information at: http://verbier.restart.be/xfer/core.txt.71 >How-To-Repeat: - plug the USB disk ugen4.3: <LaCie> at usbus4 umass1: <LaCie LaCie Hard Drive USB, class 0/0, rev 2.00/0.00, addr 3> on usbus4 umass1: SCSI over Bulk-Only; quirks = 0x0000 umass1:10:1:-1: Attached to scbus10 da6 at umass-sim1 bus 1 target 0 lun 0 da6: <SAMSUNG MP0402H UC10> Fixed Direct Access SCSI-2 device da6: 40.000MB/s transfers da6: 38204MB (78242976 512 byte sectors: 255H 63S/T 4870C) - zpool import pool3 - do some backub - zpool export pool3 - unplug the USB disk ugen4.3: <LaCie> at usbus4 (disconnected) umass1: at uhub4, port 7, addr 3 (disconnected) (da6:umass-sim1:1:0:0): lost device (da6:umass-sim1:1:0:0): removing device entry - do some more work - shutdown -p now >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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