From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 202989] New: kernel panic during F2FS GC
Date: Thu, 21 Mar 2019 14:39:15 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=202989
Bug ID: 202989
Summary: kernel panic during F2FS GC
Product: File System
Version: 2.5
Kernel Version: 4.14.81
Hardware: ARM
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: f2fs
Assignee: filesystem_f2fs@kernel-bugs.kernel.org
Reporter: hlianjun@gmail.com
Regression: No
kernel panic twice during F2FS GC.
dmesg as below:
[ 4983.497816] ------------[ cut here ]------------
[ 4983.497831] kernel BUG at /ap/kernel/msm-4.14/fs/f2fs/segment.h:654!
[ 4983.497847] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 4983.497871] ipa ipa3_active_clients_panic_notifier:262
[ 4983.497871] ---- Active Clients Table ----
[ 4983.497871] TAG_PROCESS -22 SPECIAL
[ 4983.497871]
[ 4983.497871] Total active clients count: 0
[ 4983.497871]
[ 4983.497896] Kernel Offset: 0x4a00000 from 0xffffff8008000000
[ 4983.497903] CPU features: 0x05022218
[ 4983.497908] Memory Limit: none
[ 4983.497990] CPU: 1 PID: 517 Comm: f2fs_gc-259:28 Tainted: G S W O
4.14.81-perf+ #1
[ 4983.497994] Hardware name: Qualcomm Technologies, Inc. SM6150 PM6150
Qualcomm Technologies, Inc. SM6150 QRD (DT)
[ 4983.498000] task: ffffffcda8e3bc00 task.stack: ffffff8015ff8000
[ 4983.498016] pc : f2fs_submit_page_bio+0xcc/0x710
[ 4983.498022] lr : f2fs_gc+0x10ac/0x2658
[ 4983.498027] sp : ffffff8015ffbab0 pstate : 00c00145
[ 4983.498031] x29: ffffff8015ffbb10 x28: ffffffcc97a20000
[ 4983.498037] x27: ffffffcc97a20270 x26: 0000000000041202
[ 4983.498044] x25: ffffffcd2ea84641 x24: 0000000000000000
[ 4983.498050] x23: 00000000000000e4 x22: ffffffbf34baa200
[ 4983.498056] x21: ffffffbf34ad1980 x20: ffffff8015ffbcf0
[ 4983.498062] x19: ffffffcc97a20000 x18: 0000000001b3d600
[ 4983.498068] x17: 0000000000000200 x16: 000000000000d9eb
[ 4983.498074] x15: 0000000000000009 x14: ffffffcdaaa91e54
[ 4983.498080] x13: ffffffbf34ad1980 x12: 0000000000000001
[ 4983.498086] x11: ffffffcdaaa91e5c x10: ffffffcdaaa91e50
[ 4983.498092] x9 : ffffffcdab64e800 x8 : 00000000ffffffff
[ 4983.498098] x7 : 2ae5373e5569c600 x6 : ffffff800e6f1ba0
[ 4983.498104] x5 : 0000000000000000 x4 : ffffffcc97a20170
[ 4983.498110] x3 : ffffffbf34ad1980 x2 : 0000000001b3d800
[ 4983.498117] x1 : ffffffbf34ad1980 x0 : ffffff8015ffbcf0
[ 4983.498124]
[ 4983.498124] PC: 0xffffff800ce243b4:
[ 4983.498130] 43b4 6b0801ff 540001e8 b4000090 9101420a 9101720b 14000004
f9400933 9101226a
[ 4983.498145] 43d4 9100c26b b9400170 b944312f b9400151 1acf2212 0b110242
6b08005f 54000208
[ 4983.498158] 43f4 d4210000 14000000 f9400925 910120ac b940018d 6b0801bf
540030a8 b4000071
[ 4983.498171] 4414 9101522d 14000003 f9400926 910170cd b94001ae 6b0801df
54002fa9 d001000a
[ 4983.498185]
[ 4983.498185] LR: 0xffffff800ce21acc:
[ 4983.498191] 1acc 2a1f03e7 f81683b6 292b8ba2 940063c6 f85403a5 52800803
b85043a1 321f07e2
[ 4983.498205] 1aec 72a02803 f940c0b0 f9401a00 97f7bf56 f81703a0 b4002a00
d10303a0 94000a08
[ 4983.498218] 1b0c 2a0003f8 340029d8 f85703bb b400369b f9401366 d10004cf
f24000df 9a8f0360
[ 4983.498230] 1b2c f940000d 3607c8cd aa1b03e0 97f7bcca f940136e d10005d1
f24001df 9a910360
[ 4983.498244]
[ 4983.498244] SP: 0xffffff8015ffba70:
[ 4983.498250] ba70 0ce243f4 ffffff80 00c00145 00000000 00000000 00000000
5569c600 2ae5373e
[ 4983.498263] ba90 ffffffff ffffffff 00f142a7 00000000 15ffbb10 ffffff80
0ce243f4 ffffff80
[ 4983.498276] bab0 15ffbb10 ffffff80 97a20000 ffffffcc 97a20000 ffffffcc
97a20270 ffffffcc
[ 4983.498289] bad0 00041202 00000000 2ea84641 ffffffcd 00000000 00000000
000000e4 00000000
[ 4983.498302]
[ 4983.498307] Process f2fs_gc-259:28 (pid: 517, stack limit =
0xffffff8015ff8000)
[ 4983.498311] Call trace:
[ 4983.498318] f2fs_submit_page_bio+0xcc/0x710
[ 4983.498323] f2fs_gc+0x10ac/0x2658
[ 4983.498329] gc_thread_func+0x188/0x398
[ 4983.498339] kthread+0x110/0x120
[ 4983.498346] ret_from_fork+0x10/0x18
[ 4983.498355] Code: 1acf2212 0b110242 6b08005f 54000208 (d4210000)
[ 4983.498363] ---[ end trace 48f10a63e91d9ade ]---
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