Bug 147903
| Summary: | [zfs] [panic] Kernel panics on faulty zfs device | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Michiel Leenaars <michiel.ml> |
| Component: | kern | Assignee: | Bugmeister <bugmeister> |
| Status: | Closed Overcome By Events | ||
| Severity: | Affects Only Me | Keywords: | crash |
| Priority: | Normal | ||
| Version: | 8.0-RELEASE | ||
| Hardware: | Any | ||
| OS: | Any | ||
I have removed the failing disk from the LaCie USB-casing, and have connected to another USB device. Now the USB error has disappeared, but when I boot without the disk and then attach it I still get this kernel trap and a rebooting system when it automatically starts the ZFS pool after the missing disk is found: kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id - 00 fault virtual address = 0x11 fault code = supervisor write data, page not present instruction pointer = 0x20:0xffffffff80586940 stack pointer = 0x28:0xffffff8000027980 frame pointer = 0x28:0xffffff8000027990 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, grna 1 processor eflags = resume, IOPL =0 current process = 11 (idel: cpu0) trap number = 12 panic: page fault cpuid = 0 Uptime: 10m12s Cannot dump. Device not defined or unavailable Automatic reboot in 15 seconds - press a key on the console to abort Rebooting... cpu_reset: Stopping other CPU's Would upgrading to another FreeBSD environment help? Best, Michiel Leenaars Responsible Changed From-To: freebsd-bugs->freebsd-fs Over to maintainer(s). For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped ^Triage: I'm sorry that this PR did not get addressed in a timely fashion. By now, the version that it was created against is long out of support. As well, many newer versions of ZFS have been imported. Please re-open if it is still a problem on a supported version. |
Hi there, one of the four drives in my desktop machine attached to a zpool has apparently something corrupted. Whenever I boot with that (external) disk attached, my machine crashes with a panic and reboots. It took some time to find out that when I unplugged that particular drive, I am able to boot the system, the zpool is not online then. When I replug the (usb) drive back in, it keeps on connecting and disconnecting - repeating this message: umass0:0:0:-1: Attached to scbus0 ugen4.2: <LaCie> at usbus4 (disconnected) umass0: at uhub4, port 5, addr 2 (disconnected) ugen4.2: <LaCie> at usbus4 umass0: <Bulk Only Interface> on usbus4 umass0: SCSI over Bulk-Only; quirks = 0x0000 When I run zpool status obviously it gives that it cannot open that disk: pool: tank state: UNAVAIL status: One or more devices could not be opened. There are insufficient replicas for the pool to continue functioning. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-3C scrub: none requested config: NAME STATE READ WRITE CKSUM tank UNAVAIL 0 0 0 insufficient replicas ad6 ONLINE 0 0 0 ad10 ONLINE 0 0 0 ad12 ONLINE 0 0 0 da0 UNAVAIL 0 0 0 cannot open The first when I cleared the errors and had the disk plugged in $ zpool clear tank da0 zfs tried to get the device online and the system rebooted. Meanwhile, some more damage occurred, because somehow I don't have sufficient rights to clear the zpool errors - even though I am logged in as root. cannot clear errors for tank: permission denied So there seem to be two issues: first is an zfs error handling issue that somehow manages to crash the system. The second is the lock out for the superuser to reattach a device (hopefully for resilvering). How-To-Repeat: Well, my system does it every time I reboot with this hard drive attached, but I'm not sure how other could reproduce it.