[LU-1596] mds crash after recovery finished

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 2.1.2
• Environment: 2.1.2 server; 2.1.1and2.1.2 clients
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Mahmoud Hanafi

Description

see attached console logs. MDS went through recover didn't finish it restarted recovery. At the end of send recovery cycle it crash

crash is at line 1252
BUG: scheduling while atomic: mdt_33/5450/0xffff8800^M
BUG: unable to handle kernel paging request at 0000000000015fc0^M
IP: [<ffffffff81523c5e>] _spin_lock+0xe/0x30^M
PGD 5cc604067 PUD 5cc608067 PMD 0 ^M
Oops: 0002 1 SMP ^M
last sysfs file: /sys/devices/pci0000:00/0000:00:1c.0/0000:03:00.0/host1/rport-1:0-0/target1:0:0/1:0:0:1/state^M
^M
Entering kdb (current=0xffffffff81a2d020, pid 0) on processor 0 Oops: (null)^M
due to oops @ 0xffffffff81523c5e^M
r15 = 0x0000000000000003 r14 = 0x0000000000015fc0 ^M
r13 = 0xffff880040e03998 r12 = 0xffff8804432c9500 ^M
bp = 0xffff880040e03930 bx = 0x0000000000015fc0 ^M
r11 = 0x0000000000000028 r10 = 0x0000000000000000 ^M
r9 = 0xfbad0278679d3602 r8 = 0x0000000000000000 ^M
ax = 0x0000000000010000 cx = 0xffff880040e03ab0 ^M
dx = 0x0000000000000082 si = 0xffff880040e03998 ^M
di = 0x0000000000015fc0 orig_ax = 0xffffffffffffffff ^M
ip = 0xffffffff81523c5e cs = 0x0000000000000010 ^M
flags = 0x0000000000010006 sp = 0xffff880040e03920 ^M
ss = 0x0000000000000018 &regs = 0xffff880040e03888^M