syzbot


upstream boot error: WARNING in vtime_user_enter
Status: auto-closed as invalid on 2022/02/07 20:07
Reported-by: syzbot+7535c916093a64efc0d2@syzkaller.appspotmail.com
First crash: 207d, last: 199d

Sample crash report:
Registered RDS/tcp transport
NET: Registered PF_SMC protocol family
9pnet: Installing 9P2000 support
Key type dns_resolver registered
Key type ceph registered
libceph: loaded (mon/osd proto 15/24)
NET: Registered PF_VSOCK protocol family
Registering SWP/SWPB emulation handler
registered taskstats version 1
Loading compiled-in X.509 certificates
Loaded X.509 cert 'Build time autogenerated kernel key: f850c787ad998c396ae089c083b940ff0a9abb77'
zswap: loaded using pool lzo/zbud
Key type ._fscrypt registered
Key type .fscrypt registered
Key type fscrypt-provisioning registered
Key type big_key registered
Key type encrypted registered
ima: No TPM chip found, activating TPM-bypass!
Loading compiled-in module X.509 certificates
Loaded X.509 cert 'Build time autogenerated kernel key: f850c787ad998c396ae089c083b940ff0a9abb77'
ima: Allocated hash algorithm: sha256
ima: No architecture policies found
evm: Initialising EVM extended attributes:
evm: security.selinux
evm: security.SMACK64 (disabled)
evm: security.SMACK64EXEC (disabled)
evm: security.SMACK64TRANSMUTE (disabled)
evm: security.SMACK64MMAP (disabled)
evm: security.apparmor (disabled)
evm: security.ima
evm: security.capability
evm: HMAC attrs: 0x1
printk: console [netcon0] enabled
netconsole: network logging started
gtp: GTP module loaded (pdp ctx size 64 bytes)
ALSA device list:
  #0: Dummy 1
  #1: Loopback 1
  #2: Virtual MIDI Card 1
  #3: ARM AC'97 Interface PL041 rev0 at 0x1c040000, irq 36
uart-pl011 1c090000.serial: no DMA platform data
md: Skipping autodetection of RAID arrays. (raid=autodetect will force)
EXT4-fs (vda): mounted filesystem without journal. Opts: (null). Quota mode: none.
VFS: Mounted root (ext4 filesystem) readonly on device 253:0.
devtmpfs: mounted
Freeing unused kernel image (initmem) memory: 2048K
Failed to set sysctl parameter 'vm.nr_hugepages=4': parameter not found
Failed to set sysctl parameter 'vm.nr_overcommit_hugepages=4': parameter not found
Run /sbin/init as init process
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:271 [inline]
WARNING: CPU: 0 PID: 1 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:269 [inline]
WARNING: CPU: 0 PID: 1 at include/linux/seqlock.h:271 vtime_user_enter+0x13c/0x140 kernel/sched/cputime.c:709
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 1 Comm: init Not tainted 5.15.0-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<81849bd8>] (dump_backtrace) from [<81849f60>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:237)
 r7:81f6b328 r6:00000080 r5:81f7d410 r4:60000093
[<81849f48>] (show_stack) from [<81853f74>] (__dump_stack lib/dump_stack.c:88 [inline])
[<81849f48>] (show_stack) from [<81853f74>] (dump_stack_lvl+0x70/0x98 lib/dump_stack.c:106)
[<81853f04>] (dump_stack_lvl) from [<81853fb4>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r7:81f6b328 r6:82639b0c r5:00000000 r4:82878098
[<81853f9c>] (dump_stack) from [<8184aabc>] (panic+0x114/0x354 kernel/panic.c:232)
[<8184a9a8>] (panic) from [<802437d8>] (__warn+0xa4/0x13c kernel/panic.c:603)
 r3:82622488 r2:00000000 r1:838d7cd8 r0:81f6b328
 r7:00000009
[<80243734>] (__warn) from [<8184ad64>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:626)
 r8:00000009 r7:8028e12c r6:0000010f r5:81f636dc r4:00000000
[<8184ad00>] (warn_slowpath_fmt) from [<8028e12c>] (__seqprop_assert include/linux/seqlock.h:271 [inline])
[<8184ad00>] (warn_slowpath_fmt) from [<8028e12c>] (__seqprop_assert include/linux/seqlock.h:269 [inline])
[<8184ad00>] (warn_slowpath_fmt) from [<8028e12c>] (vtime_user_enter+0x13c/0x140 kernel/sched/cputime.c:709)
 r8:82622494 r7:00000003 r6:838e0710 r5:81867700 r4:838e0000
[<8028dff0>] (vtime_user_enter) from [<81867700>] (__context_tracking_enter+0xf8/0x25c kernel/context_tracking.c:82)
 r7:00000003 r6:838e0000 r5:824a7bc8 r4:00000001
[<81867608>] (__context_tracking_enter) from [<8041be2c>] (context_tracking_enter kernel/context_tracking.c:122 [inline])
[<81867608>] (__context_tracking_enter) from [<8041be2c>] (context_tracking_enter+0x4c/0x7c kernel/context_tracking.c:106)
 r9:838e0000 r8:00000000 r7:00000000 r6:00000000 r5:60000093 r4:00000001
[<8041bde0>] (context_tracking_enter) from [<8041bef4>] (user_enter include/linux/context_tracking.h:28 [inline])
[<8041bde0>] (context_tracking_enter) from [<8041bef4>] (context_tracking_user_enter+0x1c/0x20 kernel/context_tracking.c:130)
 r5:81867d4c r4:00000000
[<8041bed8>] (context_tracking_user_enter) from [<802000b4>] (no_work_pending+0x8/0x44)
Exception stack(0x838d7fb0 to 0x838d7ff8)
7fa0:                                     00000000 00000000 00000000 00000000
7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
7fe0: 00000000 7ed2eed0 00000000 76faca00 00000010 00000000
Rebooting in 86400 seconds..

Crashes (120):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-qemu2-arm32 2021/11/09 20:06 upstream cb690f5238d7 59bcaf9a .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/09 13:15 upstream d2f38a3c6507 59bcaf9a .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/08 23:49 upstream d2f38a3c6507 8ab17e57 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/08 21:08 upstream d2f38a3c6507 d29682f1 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/08 18:18 upstream e851dfae4371 d29682f1 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/08 11:46 upstream 6b75d88fa81b d29682f1 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/07 19:51 upstream 6b75d88fa81b 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/07 19:51 upstream 6b75d88fa81b 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/07 00:41 upstream b5013d084e03 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/06 22:11 upstream 512b7931ad05 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/05 16:41 upstream fe91c4725aee 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 21:51 upstream d4439a1189f9 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 19:41 upstream c1e2e0350ce3 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 17:51 upstream abfecb390920 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 17:51 upstream abfecb390920 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 05:01 upstream 7ddb58cb0eca 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/04 00:51 upstream ce840177930f 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 22:41 upstream 43e1b1292727 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 21:11 upstream d4ec3d5535c7 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 19:31 upstream 5c4e0a21fae8 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 16:51 upstream 25edbc383b72 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 15:41 upstream ff0700f03609 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 14:10 upstream dcd68326d29b 4c1be0be .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 06:30 upstream dcd68326d29b 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 00:30 upstream 464fddbba1df 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/03 00:30 upstream 464fddbba1df 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 23:41 upstream 33fb42636a93 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 23:41 upstream 33fb42636a93 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 23:41 upstream 33fb42636a93 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 20:30 upstream bba7d682277c 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 20:30 upstream bba7d682277c 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 20:30 upstream bba7d682277c 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 19:20 upstream ab2e7f4b46bf 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 19:20 upstream ab2e7f4b46bf 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 19:20 upstream ab2e7f4b46bf 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 17:32 upstream cc0356d6a02e 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 17:32 upstream cc0356d6a02e 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 17:32 upstream cc0356d6a02e 17f3edd2 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 16:24 upstream cc0356d6a02e 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 16:24 upstream cc0356d6a02e 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 16:24 upstream cc0356d6a02e 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 15:34 upstream fc02cb2b37fe 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 15:34 upstream fc02cb2b37fe 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 15:34 upstream fc02cb2b37fe 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 05:44 upstream bfc484fe6abb 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 05:44 upstream bfc484fe6abb 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 05:44 upstream bfc484fe6abb 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 04:54 upstream d2fac0afe89f 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/02 04:54 upstream d2fac0afe89f 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter
ci-qemu2-arm32 2021/11/01 22:44 upstream e66435936756 098b5d53 .config log report upstream boot error: WARNING in vtime_user_enter