[LU-2326] Assertion triggered in class_add_uuid

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Major
• Affects Version/s: Lustre 2.4.0
• Labels: llnl
• Environment: 2.3.54-6chaos
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Prakash Surya (Inactive)

Description

Hit this assertion on the MDS today:

LustreError: 1700:0:(lustre_peer.c:129:class_add_uuid()) ASSERTION( entry->un_nid_count < 32 ) failed: 
LustreError: 1700:0:(lustre_peer.c:129:class_add_uuid()) LBUG

PID: 1700   TASK: ffff8817a85d8040  CPU: 1   COMMAND: "llog_process_th"
 #0 [ffff88177da81aa8] machine_kexec at ffffffff8103216b
 #1 [ffff88177da81b08] crash_kexec at ffffffff810b8d12
 #2 [ffff88177da81bd8] panic at ffffffff814eea99
 #3 [ffff88177da81c58] lbug_with_loc at ffffffffa0577fcb [libcfs]
 #4 [ffff88177da81c78] class_add_uuid at ffffffffa06f8321 [obdclass]
 #5 [ffff88177da81cc8] class_process_config at ffffffffa070eb3c [obdclass]
 #6 [ffff88177da81d48] class_config_llog_handler at ffffffffa071110b [obdclass]
 #7 [ffff88177da81e28] llog_process_thread at ffffffffa06d1f3b [obdclass]
 #8 [ffff88177da81ed8] llog_process_thread_daemonize at ffffffffa06d249c [obdclass]
 #9 [ffff88177da81f48] kernel_thread at ffffffff8100c14a