[FS#3537] ramips-mt7621: rcu_sched self-detected stall on CPU

OpenWrt Bugs openwrt-bugs at lists.openwrt.org
Sun Dec 27 05:33:30 EST 2020


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The following task has a new comment added:

FS#3537 - ramips-mt7621: rcu_sched self-detected stall on CPU
User who did this - Dan Berger (dfberger)

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Dec 26 23:49:45 portcullis kernel: [ 5588.546234] INFO: rcu_sched self-detected stall on CPU
Dec 26 23:49:46 portcullis kernel: [ 5588.556603] #0113-...: (1 GPs behind) idle=31a/2/0 softirq=219227/219229 fqs=2976
Dec 26 23:49:46 portcullis kernel: [ 5588.566221] INFO: rcu_sched detected stalls on CPUs/tasks:
Dec 26 23:49:46 portcullis kernel: [ 5588.571173] #011 (t=6002 jiffies g=82015 c=82014 q=1928)
Dec 26 23:49:46 portcullis kernel: [ 5588.582112] #0113-...: (1 GPs behind) idle=31a/2/0 softirq=219227/219229 fqs=2977
Dec 26 23:49:46 portcullis kernel: [ 5588.606667] #011(detected by 1, t=6005 jiffies, g=82015, c=82014, q=1928)
Dec 26 23:49:46 portcullis kernel: [ 5588.606697] NMI backtrace for cpu 3
Dec 26 23:49:46 portcullis kernel: [ 5588.606760] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.14.209 #0
Dec 26 23:49:46 portcullis kernel: [ 5588.638777] Stack : 00000000 00000000 00000000 80550000 00000000 00000000 00000000 00000000
Dec 26 23:49:46 portcullis kernel: [ 5588.655599]         00000000 00000000 00000000 00000000 00000000 00000001 8fc0f6b8 53261630
Dec 26 23:49:46 portcullis kernel: [ 5588.672420]         8fc0f750 00000000 00000000 00004020 00000038 8049da98 00000007 00000000
Dec 26 23:49:46 portcullis kernel: [ 5588.689243]         00000000 80550000 00094228 00000000 8fc0f698 00000000 00000000 00000003
Dec 26 23:49:46 portcullis kernel: [ 5588.706068]         80554500 8054c0cc 000000e0 80550000 00000000 802ae190 0000000c 806b000c
Dec 26 23:49:46 portcullis kernel: [ 5588.722860]         ...
Dec 26 23:49:46 portcullis kernel: [ 5588.727785] Call Trace:
Dec 26 23:49:46 portcullis kernel: [ 5588.727869] [] 0x8049da98
Dec 26 23:49:46 portcullis kernel: [ 5588.739753] [] 0x802ae190
Dec 26 23:49:46 portcullis kernel: [ 5588.746748] [] 0x8000c1a0
Dec 26 23:49:46 portcullis kernel: [ 5588.753744] [] 0x8000c1a8
Dec 26 23:49:46 portcullis kernel: [ 5588.760733] [] 0x804868d4
Dec 26 23:49:46 portcullis kernel: [ 5588.767725] [] 0x80072c54
Dec 26 23:49:46 portcullis kernel: [ 5588.774724] [] 0x8048d8f4
Dec 26 23:49:46 portcullis kernel: [ 5588.781715] [] 0x80008f30
Dec 26 23:49:46 portcullis kernel: [ 5588.788709] [] 0x80008f30
Dec 26 23:49:46 portcullis kernel: [ 5588.795697] [] 0x8048d9e0
Dec 26 23:49:46 portcullis kernel: [ 5588.802690] [] 0x804a4394
Dec 26 23:49:46 portcullis kernel: [ 5588.809691] [] 0x80086558
Dec 26 23:49:46 portcullis kernel: [ 5588.816699] [] 0x800859a8
Dec 26 23:49:46 portcullis kernel: [ 5588.823850] [] 0x80089118
Dec 26 23:49:46 portcullis kernel: [ 5588.830852] [] 0x8009a168
Dec 26 23:49:46 portcullis kernel: [ 5588.837858] [] 0x80332644
Dec 26 23:49:46 portcullis kernel: [ 5588.844854] [] 0x80079328
Dec 26 23:49:46 portcullis kernel: [ 5588.851907] [] 0x800735e0
Dec 26 23:49:46 portcullis kernel: [ 5588.858900] [] 0x8025bd98
Dec 26 23:49:46 portcullis kernel: [ 5588.865890] [] 0x8025bc44
Dec 26 23:49:46 portcullis kernel: [ 5588.872894] [] 0x8025be04
Dec 26 23:49:46 portcullis kernel: [ 5588.879889] [] 0x800735e0
Dec 26 23:49:46 portcullis kernel: [ 5588.886929] [] 0x803a75a8
Dec 26 23:49:46 portcullis kernel: [ 5588.893919] [] 0x804a475c
Dec 26 23:49:46 portcullis kernel: [ 5588.900908] [] 0x8031bc70
Dec 26 23:49:46 portcullis kernel: [ 5588.907901] [] 0x8025b4c0
Dec 26 23:49:46 portcullis kernel: [ 5588.914956] [] 0x80007488
Dec 26 23:49:46 portcullis kernel: [ 5588.922001] [] 0x803a7654
Dec 26 23:49:46 portcullis kernel: [ 5588.929229] [] 0x8006be90
Dec 26 23:49:46 portcullis kernel: [ 5588.936210] [] 0x8006bf24
Dec 26 23:49:46 portcullis kernel: [ 5588.943453] [] 0x8e885a6c [nf_flow_table at 8e884000+0x3370]
Dec 26 23:49:46 portcullis kernel: [ 5588.956210] [] 0x8eb2c870 [xt_FLOWOFFLOAD at 8eb2c000+0xc10]
Dec 26 23:49:46 portcullis kernel: [ 5588.968853] [] 0x803f1870
Dec 26 23:49:46 portcullis kernel: [ 5588.976026] [] 0x8eaf961c [ip_tables at 8eaf8000+0x2b30]
Dec 26 23:49:46 portcullis kernel: [ 5588.987948] [] 0x8eb00000 [pppoe at 8eb00000+0x2400]
Dec 26 23:49:46 portcullis kernel: [ 5588.999402] [] 0x803a0a78
Dec 26 23:49:46 portcullis kernel: [ 5589.006553] [] 0x803aa688
Dec 26 23:49:46 portcullis kernel: [ 5589.013699] [] 0x803aa220
Dec 26 23:49:46 portcullis kernel: [ 5589.020696] [] 0x803a94d8
Dec 26 23:49:46 portcullis kernel: [ 5589.027705] [] 0x803a8a40
Dec 26 23:49:46 portcullis kernel: [ 5589.034698] [] 0x8036270c
Dec 26 23:49:46 portcullis kernel: [ 5589.041824] [] 0x80364e18
Dec 26 23:49:46 portcullis kernel: [ 5589.048818] [] 0x80053d4c
Dec 26 23:49:46 portcullis kernel: [ 5589.055860] [] 0x8046e770
Dec 26 23:49:46 portcullis kernel: [ 5589.062852] [] 0x80067a40
Dec 26 23:49:46 portcullis kernel: [ 5589.069937] [] 0x80165e88
Dec 26 23:49:46 portcullis kernel: [ 5589.077070] [] 0x8046ecbc
Dec 26 23:49:46 portcullis kernel: [ 5589.084070] [] 0x803a0a78
Dec 26 23:49:46 portcullis kernel: [ 5589.091124] [] 0x8046f108
Dec 26 23:49:46 portcullis kernel: [ 5589.098181] [] 0x8046e79c
Dec 26 23:49:46 portcullis kernel: [ 5589.105175] [] 0x8046ed2c
Dec 26 23:49:46 portcullis kernel: [ 5589.112163] [] 0x803623fc
Dec 26 23:49:46 portcullis kernel: [ 5589.119153] [] 0x80011860
Dec 26 23:49:46 portcullis kernel: [ 5589.126181] [] 0x803629e8
Dec 26 23:49:46 portcullis kernel: [ 5589.133178] [] 0x803652b0
Dec 26 23:49:46 portcullis kernel: [ 5589.140174] [] 0x80078510
Dec 26 23:49:46 portcullis kernel: [ 5589.147191] [] 0x804a4898
Dec 26 23:49:46 portcullis kernel: [ 5589.154213] [] 0x80033164
Dec 26 23:49:46 portcullis kernel: [ 5589.161207] [] 0x8025b4c0
Dec 26 23:49:46 portcullis kernel: [ 5589.168210] [] 0x80007488
Dec 26 23:49:46 portcullis kernel: [ 5589.175183]
Dec 26 23:49:46 portcullis kernel: [ 5589.178199] Sending NMI from CPU 1 to CPUs 3:
Dec 26 23:49:46 portcullis kernel: [ 5592.744029] NMI backtrace for cpu 3
Dec 26 23:49:46 portcullis kernel: [ 5592.751072] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.14.209 #0
Dec 26 23:49:46 portcullis kernel: [ 5592.763251] task: 8fc3cc80 task.stack: 8fc68000
Dec 26 23:49:46 portcullis kernel: [ 5592.772299] $ 0   : 00000000 00000001 00000000 00c79000
Dec 26 23:49:46 portcullis kernel: [ 5592.782826] $ 4   : 00000000 00100000 00080608 00080608
Dec 26 23:49:46 portcullis kernel: [ 5592.793355] $ 8   : 0000ffff ffff0000 00000002 8f0825e0
Dec 26 23:49:46 portcullis kernel: [ 5592.803886] $12   : 8fd47000 8fd47044 804d06fc 00000001
Dec 26 23:49:46 portcullis kernel: [ 5592.814418] $16   : 8de4bb7c 81240320 8054c1e8 00100000
Dec 26 23:49:46 portcullis kernel: [ 5592.824953] $20   : 81224320 8f74e93c 0000005f 8f225300
Dec 26 23:49:46 portcullis kernel: [ 5592.835446] $24   : c0a800d7 00000000
Dec 26 23:49:46 portcullis kernel: [ 5592.845970] $28   : 8fc68000 8fc0fa80 8fc0fb14 8006be90
Dec 26 23:49:46 portcullis kernel: [ 5592.856505] Hi    : 00000000
Dec 26 23:49:46 portcullis kernel: [ 5592.862266] Lo    : 00000000
Dec 26 23:49:46 portcullis kernel: [ 5592.868046] epc   : 8006bf24 0x8006bf24
Dec 26 23:49:46 portcullis kernel: [ 5592.875728] ra    : 8006be90 0x8006be90
Dec 26 23:49:46 portcullis kernel: [ 5592.883390] Status: 11007c03#011KERNEL EXL IE
Dec 26 23:49:46 portcullis kernel: [ 5592.891818] Cause : 50800400 (ExcCode 00)
Dec 26 23:49:46 portcullis kernel: [ 5592.899833] PrId  : 0001992f (MIPS 1004Kc)
Dec 26 23:49:46 portcullis kernel: [ 5592.908045] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.14.209 #0
Dec 26 23:49:46 portcullis kernel: [ 5592.920197] Stack : 00000000 00000000 00000000 80550000 00000000 00000000 00000000 00000000
Dec 26 23:49:46 portcullis kernel: [ 5592.937018]         00000000 00000000 00000000 00000000 00000000 00000001 8fc0f6f8 53261630
Dec 26 23:49:46 portcullis kernel: [ 5592.953843]         8fc0f790 00000000 00000000 00005080 00000038 8049da98 00000007 00000000
Dec 26 23:49:46 portcullis kernel: [ 5592.970673]         00000000 80550000 000ddb0d 00000000 8fc0f6d8 00000000 00000000 00000003
Dec 26 23:49:46 portcullis kernel: [ 5592.987498]         804dee64 8053f5a0 804dca54 80550000 00000000 802ae190 0000000c 806b000c
Dec 26 23:49:46 portcullis kernel: [ 5593.004331]         ...
Dec 26 23:49:46 portcullis kernel: [ 5593.009254] Call Trace:
Dec 26 23:49:46 portcullis kernel: [ 5593.009331] [] 0x8049da98
Dec 26 23:49:46 portcullis kernel: [ 5593.021222] [] 0x802ae190
Dec 26 23:49:46 portcullis kernel: [ 5593.028220] [] 0x8000c1a0
Dec 26 23:49:46 portcullis kernel: [ 5593.035220] [] 0x8000c1a8
Dec 26 23:49:46 portcullis kernel: [ 5593.042215] [] 0x804868d4
Dec 26 23:49:46 portcullis kernel: [ 5593.049205] [] 0x8000c264
Dec 26 23:49:46 portcullis kernel: [ 5593.056202] [] 0x8048d8d4
Dec 26 23:49:46 portcullis kernel: [ 5593.063205] [] 0x80009044
Dec 26 23:49:46 portcullis kernel: [ 5593.070192] [] 0x80009054
Dec 26 23:49:46 portcullis kernel: [ 5593.077191] [] 0x800a1740
Dec 26 23:49:46 portcullis kernel: [ 5593.084183] [] 0x80085e60
Dec 26 23:49:46 portcullis kernel: [ 5593.091188] [] 0x80011860
Dec 26 23:49:46 portcullis kernel: [ 5593.098180] [] 0x80074180
Dec 26 23:49:46 portcullis kernel: [ 5593.105279] [] 0x800742b4
Dec 26 23:49:46 portcullis kernel: [ 5593.112286] [] 0x80074358
Dec 26 23:49:46 portcullis kernel: [ 5593.119275] [] 0x80332644
Dec 26 23:49:46 portcullis kernel: [ 5593.126269] [] 0x80078510
Dec 26 23:49:46 portcullis kernel: [ 5593.133324] [] 0x800735e0
Dec 26 23:49:46 portcullis kernel: [ 5593.140317] [] 0x800735e0
Dec 26 23:49:46 portcullis kernel: [ 5593.147310] [] 0x8025bd98
Dec 26 23:49:46 portcullis kernel: [ 5593.154302] [] 0x8025bc44
Dec 26 23:49:46 portcullis kernel: [ 5593.161305] [] 0x8025be04
Dec 26 23:49:46 portcullis kernel: [ 5593.168303] [] 0x800735e0
Dec 26 23:49:46 portcullis kernel: [ 5593.175350] [] 0x803a75a8
Dec 26 23:49:46 portcullis kernel: [ 5593.182343] [] 0x804a475c
Dec 26 23:49:46 portcullis kernel: [ 5593.189332] [] 0x8031bc70
Dec 26 23:49:46 portcullis kernel: [ 5593.196322] [] 0x8025b4c0
Dec 26 23:49:46 portcullis kernel: [ 5593.203381] [] 0x80007488
Dec 26 23:49:46 portcullis kernel: [ 5593.210427] [] 0x803a7654
Dec 26 23:49:46 portcullis kernel: [ 5593.217663] [] 0x8006be90
Dec 26 23:49:46 portcullis kernel: [ 5593.224662] [] 0x8006bf24
Dec 26 23:49:46 portcullis kernel: [ 5593.231936] [] 0x8e885a6c [nf_flow_table at 8e884000+0x3370]
Dec 26 23:49:46 portcullis kernel: [ 5593.244702] [] 0x8eb2c870 [xt_FLOWOFFLOAD at 8eb2c000+0xc10]
Dec 26 23:49:46 portcullis kernel: [ 5593.257375] [] 0x803f1870
Dec 26 23:49:46 portcullis kernel: [ 5593.264554] [] 0x8eaf961c [ip_tables at 8eaf8000+0x2b30]
Dec 26 23:49:46 portcullis kernel: [ 5593.276478] [] 0x8eb00000 [pppoe at 8eb00000+0x2400]
Dec 26 23:49:46 portcullis kernel: [ 5593.287933] [] 0x803a0a78
Dec 26 23:49:46 portcullis kernel: [ 5593.295059] [] 0x803aa688
Dec 26 23:49:46 portcullis kernel: [ 5593.302210] [] 0x803aa220
Dec 26 23:49:46 portcullis kernel: [ 5593.309209] [] 0x803a94d8
Dec 26 23:49:46 portcullis kernel: [ 5593.316214] [] 0x803a8a40
Dec 26 23:49:46 portcullis kernel: [ 5593.323209] [] 0x8036270c
Dec 26 23:49:46 portcullis kernel: [ 5593.330336] [] 0x80364e18
Dec 26 23:49:46 portcullis kernel: [ 5593.337326] [] 0x80053d4c
Dec 26 23:49:46 portcullis kernel: [ 5593.344372] [] 0x8046e770
Dec 26 23:49:46 portcullis kernel: [ 5593.351362] [] 0x80067a40
Dec 26 23:49:46 portcullis kernel: [ 5593.358453] [] 0x80165e88
Dec 26 23:49:46 portcullis kernel: [ 5593.365586] [] 0x8046ecbc
Dec 26 23:49:46 portcullis kernel: [ 5593.372588] [] 0x803a0a78
Dec 26 23:49:46 portcullis kernel: [ 5593.379643] [] 0x8046f108
Dec 26 23:49:46 portcullis kernel: [ 5593.386697] [] 0x8046e79c
Dec 26 23:49:46 portcullis kernel: [ 5593.393693] [] 0x8046ed2c
Dec 26 23:49:46 portcullis kernel: [ 5593.400681] [] 0x803623fc
Dec 26 23:49:46 portcullis kernel: [ 5593.407673] [] 0x80011860
Dec 26 23:49:46 portcullis kernel: [ 5593.414704] [] 0x803629e8
Dec 26 23:49:46 portcullis kernel: [ 5593.421712] [] 0x803652b0
Dec 26 23:49:46 portcullis kernel: [ 5593.428702] [] 0x80078510
Dec 26 23:49:46 portcullis kernel: [ 5593.435716] [] 0x804a4898
Dec 26 23:49:46 portcullis kernel: [ 5593.442740] [] 0x80033164
Dec 26 23:49:46 portcullis kernel: [ 5593.449734] [] 0x8025b4c0
Dec 26 23:49:46 portcullis kernel: [ 5593.456739] [] 0x80007488
Dec 26 23:49:46 portcullis kernel: [ 5593.463715]

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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3537#comment9217

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