https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192321
Bug ID: 192321
Summary: Issuing ctladm getsync for non existing lun caused
crash and reboot
Product: Base System
Version: 10.0-STABLE
Hardware: amd64
OS: Any
Status: Needs Triage
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: nde...@gmail.com
Here's a transcript of a shell session and after the last command for a non
existing LUN the box rebooted.
[0:18][root@nas:ndenev]#ctladm devlist
LUN Backend Size (Blocks) BS Serial Number Device ID
0 block 976707584 512 MYSERIAL 0 MYDEVID 0
1 block 976773168 512 MYSERIAL 1 MYDEVID 1
2 block 536870912 512 MYSERIAL 2 MYDEVID 2
[0:18][root@nas:ndenev]#ctladm getsync 0:0
0:0: sync interval: 0
[0:18][root@nas:ndenev]#ctladm getsync 0:1
0:1: sync interval: 0
[0:18][root@nas:ndenev]#ctladm getsync 0:2
0:2: sync interval: 0
[0:18][root@nas:ndenev]#ctladm getsync 0:3
OS : FreeBSD nas.home.lan 10.0-STABLE FreeBSD 10.0-STABLE #9 r269182: Wed Jul
30 23:18:23 UTC 2014 r...@nas.home.lan:/usr/obj/usr/src/sys/NAS amd64
Console transcript of the crash :
instruction pointer = 0x20:0xffffffff802b2a06
stack pointer = 0x28:0xfffffe0096031700
frame pointer = 0x28:0xfffffe0096031990
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 = 1200 (ctladm)
trap number = 12
panic: page fault
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff80510570 at kdb_backtrace+0x60
#1 0xffffffff804d51d5 at panic+0x155 ??
#2 0xffffffff806eadff at trap_fatal+0x38??
#3 0xffffffff806eb118 at trap_pfault+0x308
#4 0xffffffff806ea7c0 at trap+0x4a0
#5 0xffffffff806d0f82 at calltrap+0x8
#6 0xffffffff803d2cb4 at devfs_ioctl_f+0x114
#7 0xffffffff80527405 at kern_ioctl+0x255
#8 0xffffffff8052715c at sys_ioctl+0x13c
#9 0xffffffff806eb731 at amd64_syscall+0x351
#10 0xffffffff806d126b at Xfast_syscall+0xfb
Uptime: 5m11s
Automatic reboot in 15 seconds - press a key on the console to abort
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