Details
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Bug
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Resolution: Unresolved
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Minor
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None
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Lustre 2.11.0
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None
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trevis, full, x86_64 servers, ppc clients
servers: el7.4, ldiskfs, branch master, v2.10.53.1, b3642
clients: el7.4, branch master, v2.10.53.1, b3642
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3
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9223372036854775807
Description
https://testing.hpdd.intel.com/test_sessions/ba995751-659c-4e63-9b5b-fbf101137b78
Numerous nfsd hangs in MDS dmesg:
[ 8040.113687] nfsd D ffff88001d72c980 0 11569 2 0x00000080 [ 8040.116595] ffff8800512e7c20 0000000000000046 ffff880060d78fd0 ffff8800512e7fd8 [ 8040.119480] ffff8800512e7fd8 ffff8800512e7fd8 ffff880060d78fd0 ffff88001d72c978 [ 8040.122352] ffff88001d72c97c ffff880060d78fd0 00000000ffffffff ffff88001d72c980 [ 8040.125151] Call Trace: [ 8040.127521] [<ffffffff816aa3c9>] schedule_preempt_disabled+0x29/0x70 [ 8040.130182] [<ffffffff816a82f7>] __mutex_lock_slowpath+0xc7/0x1d0 [ 8040.132807] [<ffffffff816a770f>] mutex_lock+0x1f/0x2f [ 8040.135325] [<ffffffffc0376c7e>] nfsd4_process_open2+0x1ce/0x1210 [nfsd] [ 8040.137891] [<ffffffffc03540db>] ? fh_verify+0x16b/0x5f0 [nfsd] [ 8040.140408] [<ffffffffc03739b9>] ? nfs4_alloc_stid+0x59/0xb0 [nfsd] [ 8040.142897] [<ffffffffc0365182>] nfsd4_open+0x542/0x830 [nfsd] [ 8040.145317] [<ffffffffc0365845>] nfsd4_proc_compound+0x3d5/0x770 [nfsd] [ 8040.147794] [<ffffffffc0350593>] nfsd_dispatch+0xd3/0x280 [nfsd] [ 8040.150257] [<ffffffffc0257453>] svc_process_common+0x453/0x6f0 [sunrpc] [ 8040.152659] [<ffffffffc02577f3>] svc_process+0x103/0x190 [sunrpc] [ 8040.155017] [<ffffffffc034feff>] nfsd+0xdf/0x150 [nfsd] [ 8040.157259] [<ffffffffc034fe20>] ? nfsd_destroy+0x80/0x80 [nfsd] [ 8040.159532] [<ffffffff810b098f>] kthread+0xcf/0xe0 [ 8040.161673] [<ffffffff8108ddeb>] ? do_exit+0x6bb/0xa40 [ 8040.163798] [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40 [ 8040.165955] [<ffffffff816b4f18>] ret_from_fork+0x58/0x90 [ 8040.168022] [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40 [ 8040.170107] INFO: task nfsd:11570 blocked for more than 120 seconds.