[LU-4717] (rw.c:128:ll_cl_init()) husk1: [0x280000f70:0x11c59:0x0] no active IO, please file a ticket.

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.6.0
• Affects Version/s: Lustre 2.6.0
• Environment: Master on SLES11 SP3
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Ann Koehler (Inactive)

Description

Filing a ticket as instructed. Log file for a client is filled with stack traces from the following error. All stack traces are the same.

LustreError: 11692:0:(rw.c:128:ll_cl_init()) husk1: [0x280000f70:0x11c59:0x0] no active IO, please file a ticket.
 Pid: 11692, comm: ksh_so_hack.bin
 Trace:
 [<ffffffff81005eb9>] try_stack_unwind+0x169/0x1b0
 [<ffffffff81004919>] dump_trace+0x89/0x450
 [<ffffffffa02158d7>] libcfs_debug_dumpstack+0x57/0x80 [libcfs]
 [<ffffffffa07f33ae>] ll_cl_init+0x21e/0x320 [lustre]
 [<ffffffffa07f34f8>] ll_readpage+0x48/0x1b0 [lustre]
 [<ffffffff81106418>] __do_page_cache_readahead+0x1e8/0x260
 [<ffffffff81106538>] force_page_cache_readahead+0x78/0xa0
 [<ffffffff810ff30d>] sys_fadvise64_64+0xdd/0x230
 [<ffffffff810ff46e>] sys_fadvise64+0xe/0x10
 [<ffffffff8145376b>] system_call_fastpath+0x16/0x1b
 [<00002aaaaaac11bd>] 0x2aaaaaac11bd

Also see these messages an hour prior to those above (in case there's a relationship):

LustreError: 4943:0:(mdc_request.c:1580:mdc_read_page()) husk1-MDT0000-mdc-ffff88044bc53800: read cache page: [0x280000f14:0x4:0x0] at 4753935872275117037: rc -5

LustreError: 5003:0:(mdc_request.c:1580:mdc_read_page()) husk1-MDT0000-mdc-ffff88044bc53800: read cache page: [0x280000f14:0x7:0x0] at 4753935872275117037: rc -5

LustreError: 5984:0:(mdc_request.c:1580:mdc_read_page()) husk1-MDT0000-mdc-ffff88044bc53800: read cache page: [0x280000f14:0x17fe9:0x0] at 6497832999440693922: rc -5

Attaching log file. Dump is available if you want it.