bisecting cause commit starting from cee407c5cc427a7d9b21ee964fbda613e368bdff building syzkaller on 9d751681c8ca1ef150e96f3c1e18bdcaab99c9b9 testing commit cee407c5cc427a7d9b21ee964fbda613e368bdff with gcc (GCC) 10.2.1 20210217 kernel signature: 2e647b9234b1ce0d7a81801447bde4ac37e77d76217fe963a441894c6df3bf43 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: SYZFAIL: mkdir(syz-tmp) failed run #10: crashed: SYZFAIL: mkdir(syz-tmp) failed run #11: crashed: SYZFAIL: mkdir(syz-tmp) failed run #12: crashed: SYZFAIL: mkdir(syz-tmp) failed run #13: crashed: SYZFAIL: mkdir(syz-tmp) failed run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK reproducer seems to be flaky testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: c62df0fa48d38d283d2bf6d7f3c3b3007979029dff8b849ecc1b2bcf4489dd39 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: SYZFAIL: failed to mkdtemp run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: crashed: SYZFAIL: mkdir(syz-tmp) failed run #16: OK run #17: OK run #18: OK run #19: OK testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: 71a98c490102fd1ecaafb6f3b49382240082154fc3b474bb5ba4bee292f50f64 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: SYZFAIL: mkdir(syz-tmp) failed run #9: crashed: SYZFAIL: mkdir(syz-tmp) failed run #10: crashed: SYZFAIL: mkdir(syz-tmp) failed run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: 7b02e64d6a8b013f8dd685eef2c29a82a8d09d7404b1f063827e5f1fc2d6c9c5 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: SYZFAIL: failed to mkdtemp run #9: OK run #10: crashed: SYZFAIL: mkdir(syz-tmp) failed run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: 65601dd20dd97c86187a43e85f107925399bd8386e3f3a6bf6e5289be574405d run #0: crashed: SYZFAIL: failed to mkdtemp 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 run #10: OK run #11: crashed: SYZFAIL: mkdir(syz-tmp) failed run #12: crashed: SYZFAIL: mkdir(syz-tmp) failed run #13: crashed: SYZFAIL: mkdir(syz-tmp) failed run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: crashed: SYZFAIL: mkdir(syz-tmp) failed run #16: OK run #17: OK run #18: OK run #19: OK testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: 5e2bb17db39990805045a8ae71bf1b5be13016e58db5e3a318bef061c19b8bf0 run #0: OK run #1: crashed: SYZFAIL: failed to mkdtemp run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: SYZFAIL: failed to mkdtemp run #9: crashed: SYZFAIL: mkdir(syz-tmp) failed run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: boot failed: can't ssh into the instance testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: e5071e8868e3be59399c2bbf4c56fddf39928e076c14ef540aeb32b1ba605c5e all runs: OK # git bisect start 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 7111951b8d4973bda27ff663f2cf18b663d15b48 Bisecting: 7542 revisions left to test after this (roughly 13 steps) [50a5de895dbe5df947b3a695777db5b2c313e065] Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma testing commit 50a5de895dbe5df947b3a695777db5b2c313e065 with gcc (GCC) 8.4.1 20210217 kernel signature: 4c7a9997fd8ebace4193654be459dfa06a634e98a0dc041d0c01d6723ac2b921 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 50a5de895dbe5df947b3a695777db5b2c313e065 Bisecting: 7542 revisions left to test after this (roughly 13 steps) [422c032afcf57d5e8109a54912e22ffc53d99068] netfilter: flowtable: Use rw sem as flow block lock testing commit 422c032afcf57d5e8109a54912e22ffc53d99068 with gcc (GCC) 8.4.1 20210217 kernel signature: 04a27725b8cd6e078af0e62e76f35ee95bf4f042a77e74fdc0ddadf49c9f1d54 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: OK run #10: OK run #11: OK run #12: crashed: WARNING in __dev_mc_add run #13: OK run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 422c032afcf57d5e8109a54912e22ffc53d99068 Bisecting: 771 revisions left to test after this (roughly 10 steps) [6349021701d0ba2e84e2be440258d81e198c3392] Merge branch 'mlxsw-Offload-FIFO' testing commit 6349021701d0ba2e84e2be440258d81e198c3392 with gcc (GCC) 8.4.1 20210217 kernel signature: 3aa83a0a76a913e3318562328be1d4d7123f2cedd08fe7a19e24a010563647d8 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: OK run #10: OK run #11: OK run #12: crashed: SYZFAIL: mkdir(syz-tmp) failed run #13: crashed: SYZFAIL: mkdir(syz-tmp) failed run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 6349021701d0ba2e84e2be440258d81e198c3392 Bisecting: 385 revisions left to test after this (roughly 9 steps) [ce69e2162f158d9d4a0e513971d02dabc7d14cb7] mdio_bus: Add generic mdio_find_bus() testing commit ce69e2162f158d9d4a0e513971d02dabc7d14cb7 with gcc (GCC) 8.4.1 20210217 kernel signature: 3976cc7dacdbd748950de2ba0aad6071cde29f3d1893cb98a6093bae22e608b0 run #0: OK run #1: OK run #2: crashed: SYZFAIL: mkdir(syz-tmp) failed run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad ce69e2162f158d9d4a0e513971d02dabc7d14cb7 Bisecting: 192 revisions left to test after this (roughly 8 steps) [807ea87032c491260bbf5fe6f5c62ec9187d2e8f] net: remove unused macro from fib_trie.c testing commit 807ea87032c491260bbf5fe6f5c62ec9187d2e8f with gcc (GCC) 8.4.1 20210217 kernel signature: 8a56ed5f7681b190fd0e10df630d36654f2f63ad238f6211895d90f47148e3c8 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: OK run #10: OK run #11: OK run #12: crashed: SYZFAIL: mkdir(syz-tmp) failed run #13: crashed: SYZFAIL: mkdir(syz-tmp) failed run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 807ea87032c491260bbf5fe6f5c62ec9187d2e8f Bisecting: 95 revisions left to test after this (roughly 7 steps) [0d30bbd03d8483548bed1fc1e96fc6cfd10248b1] net: dsa: mv88e6xxx: Allow PCS registers to be retrieved via ethtool testing commit 0d30bbd03d8483548bed1fc1e96fc6cfd10248b1 with gcc (GCC) 8.4.1 20210217 kernel signature: d93c7e9840c4539a412f15a5d5860784c0cc2c87c8f650a7f9519664f8d154e3 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: OK run #10: crashed: SYZFAIL: failed to mkdtemp run #11: OK run #12: OK run #13: OK run #14: OK run #15: crashed: SYZFAIL: failed to mkdtemp run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 0d30bbd03d8483548bed1fc1e96fc6cfd10248b1 Bisecting: 47 revisions left to test after this (roughly 6 steps) [cac960c5912a7a63cbe77032b7b1cd60c3fee0d6] r8169: remove setting PCI_CACHE_LINE_SIZE in rtl_hw_start_8169 testing commit cac960c5912a7a63cbe77032b7b1cd60c3fee0d6 with gcc (GCC) 8.4.1 20210217 kernel signature: a9764fa9b0e2957a87b0aaa4a4c87d611ea1d0b4cd71e4802642215e6b2391ab 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: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: crashed: SYZFAIL: mkdir(syz-tmp) failed run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad cac960c5912a7a63cbe77032b7b1cd60c3fee0d6 Bisecting: 24 revisions left to test after this (roughly 5 steps) [cf2c9cc3980fb2aa5a71ebbe982739987100db76] mac80211: set station bandwidth from HE capability testing commit cf2c9cc3980fb2aa5a71ebbe982739987100db76 with gcc (GCC) 8.4.1 20210217 kernel signature: 2aad84fc6ccb6eddbfe780d26da0b47a7a0273b17f5424df7d5d802ca87c923f 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: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad cf2c9cc3980fb2aa5a71ebbe982739987100db76 Bisecting: 11 revisions left to test after this (roughly 4 steps) [01afc6fedffb519a98322074c645baa2b0fa041f] mac80211_hwsim: add power save support testing commit 01afc6fedffb519a98322074c645baa2b0fa041f with gcc (GCC) 8.4.1 20210217 kernel signature: 5038fc2fa778e0ad25674edaafe0dcf832c3d70e091c93163cccc02353368088 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: SYZFAIL: failed to mkdtemp run #10: crashed: SYZFAIL: failed to mkdtemp run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: crashed: SYZFAIL: mkdir(syz-tmp) failed run #17: crashed: SYZFAIL: mkdir(syz-tmp) failed run #18: OK run #19: OK # git bisect bad 01afc6fedffb519a98322074c645baa2b0fa041f Bisecting: 5 revisions left to test after this (roughly 3 steps) [7d6aa9ba4f8228c75970fc4fad27194611a548a6] Merge remote-tracking branch 'net-next/master' into mac80211-next testing commit 7d6aa9ba4f8228c75970fc4fad27194611a548a6 with gcc (GCC) 8.4.1 20210217 kernel signature: efadbbdfe41de4189de8ae76fc74b9092ab4a0363110629294afcbe9b75d4778 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: WARNING in __dev_mc_add run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 7d6aa9ba4f8228c75970fc4fad27194611a548a6 Bisecting: 2 revisions left to test after this (roughly 2 steps) [9bcb084f0b648d032efdbb8226fe33663f8fca79] mac80211: Always show airtime debugfs file when TXQs are enabled testing commit 9bcb084f0b648d032efdbb8226fe33663f8fca79 with gcc (GCC) 8.4.1 20210217 kernel signature: 7aac563c567d2ba5fbb0dad2fbe792775c106ff1f9166113299fdc91c0fa7c28 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: OK run #10: OK run #11: OK run #12: crashed: SYZFAIL: mkdir(syz-tmp) failed run #13: crashed: SYZFAIL: mkdir(syz-tmp) failed run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 9bcb084f0b648d032efdbb8226fe33663f8fca79 Bisecting: 0 revisions left to test after this (roughly 1 step) [6989310f5d4327e8595664954edd40a7f99ddd0d] wireless: Use offsetof instead of custom macro. testing commit 6989310f5d4327e8595664954edd40a7f99ddd0d with gcc (GCC) 8.4.1 20210217 kernel signature: 9ae76d044a4b8d281f70a1e2bcf4d2dd635a67051da47858e7eb7b8ca645019b run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: SYZFAIL: failed to mkdtemp run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: crashed: SYZFAIL: mkdir(syz-tmp) failed run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 6989310f5d4327e8595664954edd40a7f99ddd0d Bisecting: 0 revisions left to test after this (roughly 0 steps) [92ee76d4a926843d0e135aa0c2d9f57504c6876c] trivial: mac80211: fix indentation testing commit 92ee76d4a926843d0e135aa0c2d9f57504c6876c with gcc (GCC) 8.4.1 20210217 kernel signature: fb83a3beed813de960bd2f51a73006523fea4e787b04984aadeac56c8cd264f7 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: OK run #10: OK run #11: OK run #12: OK run #13: crashed: SYZFAIL: failed to mkdtemp run #14: crashed: SYZFAIL: mkdir(syz-tmp) failed run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 92ee76d4a926843d0e135aa0c2d9f57504c6876c 92ee76d4a926843d0e135aa0c2d9f57504c6876c is the first bad commit commit 92ee76d4a926843d0e135aa0c2d9f57504c6876c Author: John Crispin Date: Fri Dec 6 15:31:03 2019 +0100 trivial: mac80211: fix indentation Signed-off-by: John Crispin Link: https://lore.kernel.org/r/20191206143103.3645-1-john@phrozen.org Signed-off-by: Johannes Berg include/linux/ieee80211.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) parent commit 1f4782ae2457cdd5b0e4fa0c897b5c5883cc0392 wasn't tested testing commit 1f4782ae2457cdd5b0e4fa0c897b5c5883cc0392 with gcc (GCC) 8.4.1 20210217 kernel signature: fb83a3beed813de960bd2f51a73006523fea4e787b04984aadeac56c8cd264f7 culprit signature: fb83a3beed813de960bd2f51a73006523fea4e787b04984aadeac56c8cd264f7 parent signature: fb83a3beed813de960bd2f51a73006523fea4e787b04984aadeac56c8cd264f7 Reproducer flagged being flaky revisions tested: 20, total time: 5h29m10.40523535s (build: 2h21m13.267548943s, test: 3h5m33.122637099s) first bad commit: 92ee76d4a926843d0e135aa0c2d9f57504c6876c trivial: mac80211: fix indentation recipients (to): ["johannes.berg@intel.com" "john@phrozen.org" "linux-kernel@vger.kernel.org"] recipients (cc): ["johannes@sipsolutions.net" "linux-wireless@vger.kernel.org"] crash: SYZFAIL: mkdir(syz-tmp) failed 2021/03/09 10:07:16 executor failed 11 times: executor 2: exit status 67 SYZFAIL: mkdir(syz-tmp) failed (errno 28: No space left on device) loop exited with status 67 SYZFAIL: mkdir(syz-tmp) failed (errno 28: No space left on device) loop exited with status 67