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Description
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While running a stress test (using diskomizer) and periodic fault injection by offlining the iscsit service the following assertion failure occurred:
> ::status
debugging crash dump vmcore.7 (64-bit) from hpc-t5120-01
operating system: 5.11 iser-push (sun4v)
panic message:
assertion failed: refcnt->ir_waiting == REF_NOWAIT, file: ../../common/io/idm/id
m.c, line: 2123
dump content: kernel pages only
> ::stack
vpanic(1308008, 7b3a92e0, 7b3a8f38, 84b, 339f02, 3b9aca00)
assfail+0x74(7b3a92e0, 7b3a8f38, 84b, 188bc00, 1308000, 0)
idm_refcnt_hold+0x28(702fa058, 2a1002d7ca0, 1, 2, 30874b21b58, 1)
iscsit_tgt_bind_sess+0x4c(0, 30874b21000, 128, 7b3d1c00, 30874b21000, 702fa400)
sess_sm_event_dispatch+0x9c(30074eb2510, 20, 0, 702e8c00, b0, 1303000)
sess_sm_event_locked+0xa4(30874b21000, 1, 30874980000, 1, 30074eb2510, 0)
iscsit_sess_sm_event+0x18(30874b21000, 1, 30874980000, 0, 300728606d5,
30874b214e0)
iscsit_sess_create+0x140(0, 30874980000, 1, 3, 2, 300804c6560)
login_sm_session_bind+0x2fc(30874980000, 2, 30874981c48, 0, 0, 1c00)
login_sm_process_request+0xfc(30874980000, 7b3d2220, 0, 30874980998, 7b3d2440,
30874981c48)
login_sm_event_dispatch+0xe0(0, 30874980000, 3010ca10fc8, 0, 702e8c00, fc)
iscsit_login_sm_event_locked+0xd0(30874980000, 308749809a0, 30125466600, 1200,
1000, 30874980998)
iscsit_login_sm_event+0x30(30874980000, 1, 30125466600, 18730c0, 30874980fb0,
fffffffffffffffa)
iscsit_deferred+0x7c(30125466600, 30167d2bd80, 30874980000, 3, 43, 3006461401c)
taskq_thread+0x1e4(300724754b0, 30072475508, 1, e50cbbf59fecc, 10000,
300724754e0)
thread_start+4(300724754b0, 0, baddcafebaddcafe, baddcafebaddcafe,
baddcafebaddcafe, baddcafebaddcafe)
> 702fa058 ::whatis
702fa058 is iscsit_global+50 in iscsit's bss
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