bisecting cause commit starting from 15ac8fdb74403772780be1a8c4f7c1eff1040fc4 building syzkaller on 51a9082e064119316893e12187cab2843283ed4d testing commit 15ac8fdb74403772780be1a8c4f7c1eff1040fc4 with gcc (GCC) 8.1.0 kernel signature: a7b140657b98ecf533a868ed61174dd64cd1d917d6d463dffbb1410e5df15ee3 all runs: crashed: UBSAN: shift-out-of-bounds in __red_change testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 8.1.0 kernel signature: 0a239a63f936e094afcdc973a4a1640a49766a3338df273434ed919c9d53b108 all runs: crashed: UBSAN: shift-out-of-bounds in __red_change testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 43a299fc537e8c714d4f291e0dd750ca62379f64f4e403b6386c91532496a188 all runs: crashed: UBSAN: shift-out-of-bounds in red_change testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: 9d59fff760a571f9aef85675458244dad39af3409ec46744bf8b4640c1f90dc9 all runs: crashed: UBSAN: shift-out-of-bounds in red_change testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 5a651a957f7b2d0a6c6a5e0d01901f2c562ec4a7117c85fb3ead69e0c7d7e9d0 all runs: crashed: UBSAN: undefined-behaviour in red_change testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 45db3359cea7d227a48aa67f77f64e309fe5579e273b03525727363462e79b2e all runs: crashed: UBSAN: undefined-behaviour in red_change testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 8c05250c5f3378271bc4a038b521dee136b4ac7982c41a849b91d0eb16099fa4 all runs: crashed: UBSAN: undefined-behaviour in red_change testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 20ba57603f6377c5e073ce6a66b762e7782253146a352daa80104ec2b5a98d86 all runs: crashed: UBSAN: undefined-behaviour in red_change testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 671d4b1d247e018930d04001b74feca42e2262a7ea06aaa729f3b7bbc46790d8 all runs: OK # git bisect start 4d856f72c10ecb060868ed10ff1b1453943fc6c8 0ecfebd2b52404ae0c54a878c872bb93363ada36 Bisecting: 7848 revisions left to test after this (roughly 13 steps) [43c95d3694cc448fdf50bd53b7ff3a5bb4655883] Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl testing commit 43c95d3694cc448fdf50bd53b7ff3a5bb4655883 with gcc (GCC) 8.1.0 kernel signature: 1fa48a1d331e76f77ab8c7b908b754a2ec4120e98ae55ebb13cdc6a25a55a834 all runs: OK # git bisect good 43c95d3694cc448fdf50bd53b7ff3a5bb4655883 Bisecting: 3922 revisions left to test after this (roughly 12 steps) [0e2a5b5bd9a6aaec85df347dd71432a1d2d10763] Merge branch 'parisc-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux testing commit 0e2a5b5bd9a6aaec85df347dd71432a1d2d10763 with gcc (GCC) 8.1.0 kernel signature: 7de33c1c225a10aa3844eb58a4cbb476e5bb68e1c858357eb8b766973746a566 all runs: OK # git bisect good 0e2a5b5bd9a6aaec85df347dd71432a1d2d10763 Bisecting: 1961 revisions left to test after this (roughly 11 steps) [12a6d2940b5f02b4b9f71ce098e3bb02bc24a9ea] perf record: Fix module size on s390 testing commit 12a6d2940b5f02b4b9f71ce098e3bb02bc24a9ea with gcc (GCC) 8.1.0 kernel signature: 71359ffa06d1eff8b0f09570522aa494f7c78683b1f14a898febcc641236b955 all runs: OK # git bisect good 12a6d2940b5f02b4b9f71ce098e3bb02bc24a9ea Bisecting: 984 revisions left to test after this (roughly 10 steps) [85d8d3b172eb37b23dcdbe9fa7a85e343642bfea] Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux testing commit 85d8d3b172eb37b23dcdbe9fa7a85e343642bfea with gcc (GCC) 8.1.0 kernel signature: 8d46389f3ea340b80df42ae8716f8021cf535dd28832e5c1ab38730132f5ceaf all runs: OK # git bisect good 85d8d3b172eb37b23dcdbe9fa7a85e343642bfea Bisecting: 496 revisions left to test after this (roughly 9 steps) [6525771f58cbc6ab97b5cff9069865cde8283346] Merge tag 'arc-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc testing commit 6525771f58cbc6ab97b5cff9069865cde8283346 with gcc (GCC) 8.1.0 kernel signature: a1252c84657efff60a0183187022cd7c77751b082283ead1715c2c1dcd703e0f all runs: OK # git bisect good 6525771f58cbc6ab97b5cff9069865cde8283346 Bisecting: 251 revisions left to test after this (roughly 8 steps) [345464fb760d1b772e891538b498e111c588b692] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 345464fb760d1b772e891538b498e111c588b692 with gcc (GCC) 8.1.0 kernel signature: fce5439189a5ed25bb69a4915fcb1c7210b70475a605a97be1f2150213be546d run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: crashed: general protection fault in batadv_iv_ogm_queue_add reproducer seems to be flaky # git bisect bad 345464fb760d1b772e891538b498e111c588b692 Bisecting: 123 revisions left to test after this (roughly 7 steps) [31bb5feb0d2809e60f0f27dc7703417129b814bf] Merge branch 'akpm' (patches from Andrew) testing commit 31bb5feb0d2809e60f0f27dc7703417129b814bf with gcc (GCC) 8.1.0 kernel signature: 8d6cb277a75de3ea09c798abec084ebdae2195dfc8fb75fb0e9a85947b03e0b7 all runs: OK # git bisect good 31bb5feb0d2809e60f0f27dc7703417129b814bf Bisecting: 61 revisions left to test after this (roughly 6 steps) [879c3808a4a126d271c4f39cd93f6252c72340bf] Merge branch 'net-aquantia-fixes-on-vlan-filters-and-other-conditions' testing commit 879c3808a4a126d271c4f39cd93f6252c72340bf with gcc (GCC) 8.1.0 kernel signature: 7a903c011f2f6478b92334f5ec9c27791d618d08fe96ce31a7808401b0e8c50d all runs: OK # git bisect good 879c3808a4a126d271c4f39cd93f6252c72340bf Bisecting: 38 revisions left to test after this (roughly 5 steps) [eea173097dfbb44855e3cf03c09eb5a665c20438] Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux testing commit eea173097dfbb44855e3cf03c09eb5a665c20438 with gcc (GCC) 8.1.0 kernel signature: ffb2dea8a8f309caf42de40ba7b62cdbbf1c382140b144d8b48460c0875a198b all runs: OK # git bisect good eea173097dfbb44855e3cf03c09eb5a665c20438 Bisecting: 19 revisions left to test after this (roughly 4 steps) [9eb4b5180d33c827f16829644ae0cd7382ecdb82] tools/power turbostat: update version number testing commit 9eb4b5180d33c827f16829644ae0cd7382ecdb82 with gcc (GCC) 8.1.0 kernel signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: general protection fault in batadv_iv_ogm_queue_add run #9: OK # git bisect bad 9eb4b5180d33c827f16829644ae0cd7382ecdb82 Bisecting: 9 revisions left to test after this (roughly 3 steps) [eeb71c950bc6eee460f2070643ce137e067b234c] tools/power turbostat: fix buffer overrun testing commit eeb71c950bc6eee460f2070643ce137e067b234c with gcc (GCC) 8.1.0 kernel signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 run #0: boot failed: failed to create instance: googleapi: Error 503: Internal error. Please try again or contact Google Support. (Code: '5B5FF7C89918E.A5F4289.DA0A1FF5'), backendError run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good eeb71c950bc6eee460f2070643ce137e067b234c Bisecting: 4 revisions left to test after this (roughly 2 steps) [c026c23629b825100fd4b8223227d9a395f9a56b] tools/power turbostat: read from pipes too testing commit c026c23629b825100fd4b8223227d9a395f9a56b with gcc (GCC) 8.1.0 kernel signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 all runs: OK # git bisect good c026c23629b825100fd4b8223227d9a395f9a56b Bisecting: 2 revisions left to test after this (roughly 1 step) [1e9042b9c8d46ada9ee7b3339a31f50d12e5d291] tools/power turbostat: Fix CPU%C1 display value testing commit 1e9042b9c8d46ada9ee7b3339a31f50d12e5d291 with gcc (GCC) 8.1.0 kernel signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 all runs: OK # git bisect good 1e9042b9c8d46ada9ee7b3339a31f50d12e5d291 Bisecting: 0 revisions left to test after this (roughly 1 step) [c1c10cc77883932abdb7b103687ecbb01e80bef9] tools/power turbostat: Add support for Hygon Fam 18h (Dhyana) RAPL testing commit c1c10cc77883932abdb7b103687ecbb01e80bef9 with gcc (GCC) 8.1.0 kernel signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 all runs: OK # git bisect good c1c10cc77883932abdb7b103687ecbb01e80bef9 9eb4b5180d33c827f16829644ae0cd7382ecdb82 is the first bad commit commit 9eb4b5180d33c827f16829644ae0cd7382ecdb82 Author: Len Brown Date: Sat Aug 31 14:40:39 2019 -0400 tools/power turbostat: update version number Today is 19.08.31, at least in some parts of the world. Signed-off-by: Len Brown tools/power/x86/turbostat/turbostat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) culprit signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 parent signature: 1fed06f360a446127637af8491a5a1f62de0e51d0abda221abf082021e0c60c7 Reproducer flagged being flaky revisions tested: 23, total time: 5h0m14.858007907s (build: 2h4m10.193955751s, test: 2h53m22.641089881s) first bad commit: 9eb4b5180d33c827f16829644ae0cd7382ecdb82 tools/power turbostat: update version number recipients (to): ["len.brown@intel.com" "lenb@kernel.org" "linux-pm@vger.kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: general protection fault in batadv_iv_ogm_queue_add kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 10570 Comm: kworker/u4:5 Not tainted 5.3.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:599 Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 RSP: 0018:ffff8880acfdfac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a3850b40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8880acfdfbd8 R08: ffff8880a0ec2a00 R09: 0000000000000001 R10: ffffed10159fbf8f R11: 0000000000000003 R12: ffff8880a0ec2a00 R13: dffffc0000000000 R14: ffffed10141d854e R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cdf47fe738 CR3: 00000000a391c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule+0xb47/0xe80 net/batman-adv/bat_iv_ogm.c:807 batadv_iv_send_outstanding_bat_ogm_packet+0x54c/0x780 net/batman-adv/bat_iv_ogm.c:1669 process_one_work+0x7d2/0x1560 kernel/workqueue.c:2269 worker_thread+0x85/0xb60 kernel/workqueue.c:2415 kthread+0x331/0x3f0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 8123a67bebb62519 ]--- RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:599 Code: 44 89 8d 64 ff ff ff c7 02 f1 f1 f1 f1 c7 42 04 04 f2 f2 f2 48 89 fa 65 48 8b 0c 25 28 00 00 00 48 89 4d d0 31 c9 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 99 0b 00 00 RSP: 0018:ffff8880acfdfac0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a3850b40 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8880acfdfbd8 R08: ffff8880a0ec2a00 R09: 0000000000000001 R10: ffffed10159fbf8f R11: 0000000000000003 R12: ffff8880a0ec2a00 R13: dffffc0000000000 R14: ffffed10141d854e R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cdf47fe738 CR3: 00000000a391c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400