[LU-16044] osd: truncate vs write deadlock

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

PID: 12333 TASK: ffff8d84a294c200 CPU: 8 COMMAND: "ll_ost_io02_086"
#0 [ffff8d84a29937e0] __schedule at ffffffffa8988e18
#1 [ffff8d84a2993848] schedule at ffffffffa89891e9
#2 [ffff8d84a2993858] schedule_timeout at ffffffffa8986eb1
#3 [ffff8d84a2993908] io_schedule_timeout at ffffffffa8988a9d
#4 [ffff8d84a2993938] io_schedule at ffffffffa8988b38
#5 [ffff8d84a2993948] bit_wait_io at ffffffffa8987501
#6 [ffff8d84a2993960] __wait_on_bit_lock at ffffffffa89870b1
#7 [ffff8d84a29939a0] __lock_page at ffffffffa83bd2a4
#8 [ffff8d84a29939f8] truncate_inode_pages_range at ffffffffa83cf2fb
#9 [ffff8d84a2993b50] truncate_pagecache at ffffffffa83cf3f7
#10 [ffff8d84a2993b78] osd_punch at ffffffffc14beecc [osd_ldiskfs]
#11 [ffff8d84a2993bd0] ofd_object_punch at ffffffffc15e7e26 [ofd]
#12 [ffff8d84a2993c48] ofd_punch_hdl at ffffffffc15d442f [ofd]
#13 [ffff8d84a2993cd0] tgt_checksum_niobuf_t10pi at ffffffffc0fe909e [ptlrpc]
#14 [ffff8d84a2993d58] ptlrpc_server_handle_request at ffffffffc0f9090b [ptlrpc]
#15 [ffff8d84a2993df8] ptlrpc_main at ffffffffc0f94274 [ptlrpc]
#16 [ffff8d84a2993ec8] kthread at ffffffffa82c5e31
......

PID: 12603 TASK: ffff8d8490db0000 CPU: 14 COMMAND: "ll_ost_io05_068"
#0 [ffff8d8490daf8a8] __schedule at ffffffffa8988e18
#1 [ffff8d8490daf910] schedule at ffffffffa89891e9
#2 [ffff8d8490daf920] rwsem_down_read_failed at ffffffffa898abd5
#3 [ffff8d8490daf9a0] call_rwsem_down_read_failed at ffffffffa8598068
#4 [ffff8d8490daf9f0] down_read at ffffffffa89886b0
#5 [ffff8d8490dafa08] osd_read_lock at ffffffffc148e03c [osd_ldiskfs]
#6 [ffff8d8490dafa30] ofd_commitrw_write at ffffffffc15eb76c [ofd]
#7 [ffff8d8490dafac0] ofd_commitrw at ffffffffc15efe4f [ofd]
#8 [ffff8d8490dafb58] tgt_request_preprocess at ffffffffc0fee11b [ptlrpc]
#9 [ffff8d8490dafcd0] tgt_checksum_niobuf_t10pi at ffffffffc0fe909e [ptlrpc]
#10 [ffff8d8490dafd58] ptlrpc_server_handle_request at ffffffffc0f9090b [ptlrpc]
#11 [ffff8d8490dafdf8] ptlrpc_main at ffffffffc0f94274 [ptlrpc]
#12 [ffff8d8490dafec8] kthread at ffffffffa82c5e31