[LU-4581] ASSERTION( (!(page->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, page)))) ) failed:

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Affects Version/s: Lustre 2.4.1
• Environment: client: slessp2 2.4.1-3nas
• Severity: 3
• Assignee: Jinshan Xiong (Inactive)
• Reporter: Mahmoud Hanafi

Description

3891131.052019] LustreError: 27617:0:(cl_lock.c:1964:discard_cb()) ASSERTION( (!(page->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, page)))) ) failed: ^M
[3891131.067131] LustreError: 27617:0:(cl_lock.c:1964:discard_cb()) LBUG^M
[3891131.073568] Pid: 27617, comm: geos.xco2.osse.^M


PID: 27617  TASK: ffff8809be7a04c0  CPU: 21  COMMAND: "geos.xco2.osse."
 #0 [ffff88103321f620] panic at ffffffff81450800
 #1 [ffff88103321f6a0] lbug_with_loc at ffffffffa04c2dc3 [libcfs]
 #2 [ffff88103321f6c0] discard_cb at ffffffffa0633774 [obdclass]
 #3 [ffff88103321f6f0] cl_page_gang_lookup at ffffffffa06309d6 [obdclass]
 #4 [ffff88103321f780] cl_lock_discard_pages at ffffffffa063346a [obdclass]
 #5 [ffff88103321f7c0] osc_lock_flush at ffffffffa08fe272 [osc]
 #6 [ffff88103321f810] osc_lock_cancel at ffffffffa08fe4d9 [osc]
 #7 [ffff88103321f850] cl_lock_cancel0 at ffffffffa0631155 [obdclass]
 #8 [ffff88103321f870] cl_lock_cancel at ffffffffa0631eab [obdclass]
 #9 [ffff88103321f890] osc_lock_blocking at ffffffffa08ff01d [osc]
#10 [ffff88103321f8c0] osc_dlm_blocking_ast0 at ffffffffa08ff8c9 [osc]
#11 [ffff88103321f900] osc_ldlm_blocking_ast at ffffffffa08ffa2c [osc]
#12 [ffff88103321f940] ldlm_cancel_callback at ffffffffa0742e0f [ptlrpc]
#13 [ffff88103321f950] ldlm_cli_cancel_local at ffffffffa075121f [ptlrpc]
#14 [ffff88103321f970] ldlm_cli_cancel_list_local at ffffffffa07545b2 [ptlrpc]
#15 [ffff88103321f9d0] ldlm_prep_elc_req at ffffffffa07563bf [ptlrpc]
#16 [ffff88103321fa40] ldlm_prep_enqueue_req at ffffffffa075648f [ptlrpc]
#17 [ffff88103321fa50] osc_enqueue_base at ffffffffa08e525f [osc]
#18 [ffff88103321faf0] osc_lock_enqueue at ffffffffa08ff440 [osc]
#19 [ffff88103321fb60] cl_enqueue_kick at ffffffffa0632652 [obdclass]
#20 [ffff88103321fb90] cl_enqueue_try at ffffffffa0635961 [obdclass]
#21 [ffff88103321fbc0] lov_lock_enqueue_one at ffffffffa0995d8d [lov]
#22 [ffff88103321fbf0] lov_lock_enqueue at ffffffffa09984bb [lov]
#23 [ffff88103321fc60] cl_enqueue_kick at ffffffffa0632652 [obdclass]
#24 [ffff88103321fc90] cl_enqueue_try at ffffffffa0635961 [obdclass]
#25 [ffff88103321fcc0] cl_enqueue_locked at ffffffffa0636717 [obdclass]
#26 [ffff88103321fcf0] cl_lock_request at ffffffffa06373e9 [obdclass]
#27 [ffff88103321fd40] cl_glimpse_lock at ffffffffa0a6ae5d [lustre]
#28 [ffff88103321fda0] cl_glimpse_size0 at ffffffffa0a6b31f [lustre]
#29 [ffff88103321fdf0] ll_glimpse_size at ffffffffa0a19695 [lustre]
#30 [ffff88103321fe10] ll_inode_revalidate_it at ffffffffa0a1eb68 [lustre]
#31 [ffff88103321fe40] ll_getattr_it at ffffffffa0a1ebae [lustre]
#32 [ffff88103321fe70] ll_getattr at ffffffffa0a1ecff [lustre]
#33 [ffff88103321fed0] vfs_fstat at ffffffff81155d27
#34 [ffff88103321fef0] sys_newfstat at ffffffff81155d6f
#35 [ffff88103321ff80] system_call_fastpath at ffffffff8145b412
    RIP: 00002aaaacfe9394  RSP: 00007fffffff5a20  RFLAGS: 00000202
    RAX: 0000000000000005  RBX: ffffffff8145b412  RCX: 0000000000000001
    RDX: 00007fffffdafbf8  RSI: 00007fffffdafbf8  RDI: 0000000000000009
    RBP: 00007fffffdb1cc0   R8: 0000000000000000   R9: 000000000000000a
    R10: 00007fffffdac960  R11: 0000000000000246  R12: 0000000000000001
    R13: 00007fffffdb1dc0  R14: 0000000000000000  R15: 00007fffffdb1cc0
    ORIG_RAX: 0000000000000005  CS: 0033  SS: 002b

Issue Links

• duplicates: LU-2779 LBUG in discard_cb: !(page->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, page)))
• is related to: LU-4555 Patched (LU-2779) 2.4.1 Lustre Clients still crashing with LBUG