[LU-1823] sanity/103: slab corruption

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.3.0, Lustre 2.4.0
• Affects Version/s: Lustre 2.3.0, Lustre 2.4.0
• Environment: CONFIG_DEBUG_SLAB=y
• Severity: 3
• Assignee: Oleg Drokin
• Reporter: Alex Zhuravlev

Description

Lustre: DEBUG MARKER: == sanity test 103: acl test ========================================================================= 19:57:07 (1346774227)
/work/lustre/head/clean/lustre/utils/l_getidentity
Slab corruption (Tainted: P --------------- ): size-2048 start=dac6c470, len=2048
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<dff39e58>](cfs_free+0x8/0x10 [libcfs])
310: 02 00 00 00 01 00 07 00 ff ff ff ff 02 00 05 00
320: 01 00 00 00 02 00 07 00 02 00 00 00 04 00 07 00
330: ff ff ff ff 10 00 07 00 ff ff ff ff 20 00 05 00
340: ff ff ff ff 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Next obj: start=dac6cc88, len=2048
Redzone: 0x9f911029d74e35b/0x9f911029d74e35b.
Last user: [<dff39e58>](cfs_free+0x8/0x10 [libcfs])
000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b

02000000:00000010:1.0:1346774231.327841:1804:3373:0:(sec_null.c:217:null_alloc_repbuf()) kmalloced 'req->rq_repbuf': 2048 at dac6c470.
...

02000000:00000010:1.0:1346774231.328361:836:3373:0:(sec_null.c:231:null_free_repbuf()) kfreed 'req->rq_repbuf': 2048 at dac6c470.

Issue Links

• is duplicated by: LU-1235 timeout in sanity subtest 103,unable to handle kernel paging request
• is related to: LU-1877 BUG: spinlock bad magic on CPU#0, mdt00_002/4625 on mount
• is related to: LU-1844 sanityn, subtest test_16: list_del corruption when run ofd + ldiskfs