I still sometimes get the "lost" .zfs/snapshot directory, with resulting panic, and it just happened again. I have the full crash dump, if anyone wants to look at details.
# cd /jail/foo/.zfs # ls ls: snapshot: Bad file descriptor # cd # zfs umount tank/jail/foo Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xa8 fault code = supervisor write data, page not present instruction pointer = 0x20:0xffffffff8033fac5 stack pointer = 0x28:0xffffff80626cf9d0 frame pointer = 0x28:0xffffff80626cf9e0 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 = 38362 (zfs) trap number = 12 panic: page fault cpuid = 0 Uptime: 7d3h33m46s Physical memory: 3313 MB #0 doadump () at pcpu.h:223 223 pcpu.h: No such file or directory. in pcpu.h (kgdb) #0 doadump () at pcpu.h:223 #1 0xffffffff80337bd9 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416 #2 0xffffffff8033802c in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:579 #3 0xffffffff805cc2ad in trap_fatal (frame=0xc, eva=Variable "eva" is not available. ) at /usr/src/sys/amd64/amd64/trap.c:857 #4 0xffffffff805cc694 in trap_pfault (frame=0xffffff80626cf920, usermode=0) at /usr/src/sys/amd64/amd64/trap.c:773 #5 0xffffffff805cd06a in trap (frame=0xffffff80626cf920) at /usr/src/sys/amd64/amd64/trap.c:499 #6 0xffffffff805b2943 in calltrap () at /usr/src/sys/amd64/amd64/exception.S:224 #7 0xffffffff8033fac5 in _sx_xlock (sx=0x90, opts=0, file=0xffffffff80ac1d30 "/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c", line=1349) at atomic.h:158 #8 0xffffffff80a53b85 in zfsctl_umount_snapshots (vfsp=Variable "vfsp" is not available. ) at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c:1349 #9 0xffffffff80a604f9 in zfs_umount (vfsp=0xffffff00017518d0, fflag=0) at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1020 #10 0xffffffff803c080a in dounmount (mp=0xffffff00017518d0, flags=0, td=Variable "td" is not available. ) at /usr/src/sys/kern/vfs_mount.c:1294 #11 0xffffffff803c1038 in unmount (td=0xffffff002ed50720, uap=0xffffff80626cfbf0) at /usr/src/sys/kern/vfs_mount.c:1179 #12 0xffffffff805cc906 in syscall (frame=0xffffff80626cfc80) at /usr/src/sys/amd64/amd64/trap.c:989 #13 0xffffffff805b2c21 in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:373 #14 0x0000000800f4ba4c in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) -- Stefan Bethke <s...@lassitu.de> Fon +49 151 14070811 _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"