bisecting cause commit starting from 9f51ae62c84a23ade0ba86457d30a30c9db0c50f building syzkaller on 7df9db2eb2c94fd6324472f2ff0045cbcee9b74e testing commit 9f51ae62c84a23ade0ba86457d30a30c9db0c50f with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Write in __vb2_cleanup_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #4: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #5: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #4: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #5: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 run #0: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #1: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #2: crashed: KASAN: use-after-free Read in __vb2_perform_fileio run #3: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #4: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #5: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #6: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #7: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #8: crashed: INFO: task hung in vivid_stop_generating_vid_cap run #9: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 all runs: crashed: INFO: task hung in vivid_stop_generating_vid_cap testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 all runs: OK # git bisect start v4.12 v4.11 Bisecting: 7831 revisions left to test after this (roughly 13 steps) [2bd80401743568ced7d303b008ae5298ce77e695] Merge tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio testing commit 2bd80401743568ced7d303b008ae5298ce77e695 with gcc (GCC) 7.3.0 all runs: crashed: INFO: trying to register non-static key in can_notifier # git bisect bad 2bd80401743568ced7d303b008ae5298ce77e695 Bisecting: 3853 revisions left to test after this (roughly 12 steps) [8d65b08debc7e62b2c6032d7fe7389d895b92cbc] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next testing commit 8d65b08debc7e62b2c6032d7fe7389d895b92cbc with gcc (GCC) 7.3.0 all runs: crashed: INFO: trying to register non-static key in can_notifier # git bisect bad 8d65b08debc7e62b2c6032d7fe7389d895b92cbc Bisecting: 2022 revisions left to test after this (roughly 11 steps) [cec381919818a9a0cb85600b3c82404bdd38cf36] Merge tag 'mac80211-next-for-davem-2017-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next testing commit cec381919818a9a0cb85600b3c82404bdd38cf36 with gcc (GCC) 5.5.0 all runs: crashed: INFO: trying to register non-static key in can_notifier # git bisect bad cec381919818a9a0cb85600b3c82404bdd38cf36 Bisecting: 1013 revisions left to test after this (roughly 10 steps) [5cd8985a19090f2b0ce8700ae3ec19e06a4fc5e9] net-next: dsa: add Mediatek tag RX/TX handler testing commit 5cd8985a19090f2b0ce8700ae3ec19e06a4fc5e9 with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: crashed: WARNING: ODEBUG bug in del_timer run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: crashed: WARNING: ODEBUG bug in del_timer run #6: crashed: WARNING: ODEBUG bug in del_timer run #7: crashed: WARNING: ODEBUG bug in del_timer run #8: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "21042" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor101617650" "root@localhost:/syz-executor101617650"] Warning: Permanently added '[localhost]:21042' (ECDSA) to the list of known hosts. run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "28111" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor988689908" "root@localhost:/syz-executor988689908"] Warning: Permanently added '[localhost]:28111' (ECDSA) to the list of known hosts. # git bisect bad 5cd8985a19090f2b0ce8700ae3ec19e06a4fc5e9 Bisecting: 506 revisions left to test after this (roughly 9 steps) [b4f0a66155564aaf7e98492e027efad9f797c244] net: stmmac: fix dma operation mode config for older versions testing commit b4f0a66155564aaf7e98492e027efad9f797c244 with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "10191" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor602690029" "root@localhost:/syz-executor602690029"]: exit status 1 ssh: connect to host localhost port 10191: Connection timed out lost connection run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "46059" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor134297803" "root@localhost:/syz-executor134297803"]: exit status 1 ssh: connect to host localhost port 46059: Connection timed out lost connection run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "24647" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor649655726" "root@localhost:/syz-executor649655726"]: exit status 1 ssh: connect to host localhost port 24647: Connection timed out lost connection run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "30636" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor564816241" "root@localhost:/syz-executor564816241"]: exit status 1 ssh: connect to host localhost port 30636: Connection timed out lost connection run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "2970" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor051907546" "root@localhost:/syz-executor051907546"]: exit status 1 ssh: connect to host localhost port 2970: Connection timed out lost connection run #8: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "39996" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor606229532" "root@localhost:/syz-executor606229532"] Warning: Permanently added '[localhost]:39996' (ECDSA) to the list of known hosts. run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "53192" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor359807285" "root@localhost:/syz-executor359807285"] Warning: Permanently added '[localhost]:53192' (ECDSA) to the list of known hosts. # git bisect bad b4f0a66155564aaf7e98492e027efad9f797c244 Bisecting: 252 revisions left to test after this (roughly 8 steps) [6689da155bdcd17abfe4d3a8b1e245d9ed4b5f2c] net: bcmgenet: manage dma interrupts in napi code testing commit 6689da155bdcd17abfe4d3a8b1e245d9ed4b5f2c with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: crashed: WARNING: ODEBUG bug in del_timer run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: crashed: WARNING: ODEBUG bug in del_timer run #6: crashed: WARNING: ODEBUG bug in del_timer run #7: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "34319" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor262437843" "root@localhost:/syz-executor262437843"] Warning: Permanently added '[localhost]:34319' (ECDSA) to the list of known hosts. run #8: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "16034" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor039316758" "root@localhost:/syz-executor039316758"] Warning: Permanently added '[localhost]:16034' (ECDSA) to the list of known hosts. run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "27767" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor071892861" "root@localhost:/syz-executor071892861"] Warning: Permanently added '[localhost]:27767' (ECDSA) to the list of known hosts. # git bisect bad 6689da155bdcd17abfe4d3a8b1e245d9ed4b5f2c Bisecting: 126 revisions left to test after this (roughly 7 steps) [c0243892cbb0e48873d6132f673c830602808245] ipv4: fib: Move FIB notification code to a separate file testing commit c0243892cbb0e48873d6132f673c830602808245 with gcc (GCC) 5.5.0 run #0: crashed: KASAN: use-after-free Write in ida_get_new_above run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "53518" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor784760684" "root@localhost:/syz-executor784760684"]: exit status 1 ssh: connect to host localhost port 53518: Connection timed out lost connection run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: crashed: WARNING: ODEBUG bug in del_timer run #6: crashed: WARNING: ODEBUG bug in del_timer run #7: crashed: WARNING: ODEBUG bug in del_timer run #8: crashed: WARNING: ODEBUG bug in del_timer run #9: crashed: WARNING: ODEBUG bug in del_timer # git bisect bad c0243892cbb0e48873d6132f673c830602808245 Bisecting: 62 revisions left to test after this (roughly 6 steps) [4e4a105f1fde326a5d1b0fbcbba8254c54a673e4] net: mvpp2: store physical address of buffer in rx_desc->buf_cookie testing commit 4e4a105f1fde326a5d1b0fbcbba8254c54a673e4 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 4e4a105f1fde326a5d1b0fbcbba8254c54a673e4 Bisecting: 31 revisions left to test after this (roughly 5 steps) [abb521e36b9286c262971974ebaeda2d67dadd86] ethtool: add CRC32 as an RSS hash function testing commit abb521e36b9286c262971974ebaeda2d67dadd86 with gcc (GCC) 5.5.0 all runs: OK # git bisect good abb521e36b9286c262971974ebaeda2d67dadd86 Bisecting: 15 revisions left to test after this (roughly 4 steps) [9efd3831d5ae3babb45a37ae7d6b18642a0745de] net: ks8851: Added support for half-duplex SPI testing commit 9efd3831d5ae3babb45a37ae7d6b18642a0745de with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: crashed: WARNING: ODEBUG bug in del_timer run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "19214" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor681440562" "root@localhost:/syz-executor681440562"]: exit status 1 ssh: connect to host localhost port 19214: Connection timed out lost connection run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "53879" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor189939551" "root@localhost:/syz-executor189939551"]: exit status 1 ssh: connect to host localhost port 53879: Connection timed out lost connection run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "35776" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor146331369" "root@localhost:/syz-executor146331369"]: exit status 1 ssh: connect to host localhost port 35776: Connection timed out lost connection run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "46407" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor753859331" "root@localhost:/syz-executor753859331"]: exit status 1 ssh: connect to host localhost port 46407: Connection timed out lost connection run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "38659" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor345565492" "root@localhost:/syz-executor345565492"] Warning: Permanently added '[localhost]:38659' (ECDSA) to the list of known hosts. # git bisect bad 9efd3831d5ae3babb45a37ae7d6b18642a0745de Bisecting: 7 revisions left to test after this (roughly 3 steps) [5692dbb56e6012c0755614ee64fe4c221f357e7a] nfp: prevent theoretical buffer overrun in nfp_eth_read_ports testing commit 5692dbb56e6012c0755614ee64fe4c221f357e7a with gcc (GCC) 5.5.0 all runs: OK # git bisect good 5692dbb56e6012c0755614ee64fe4c221f357e7a Bisecting: 3 revisions left to test after this (roughly 2 steps) [8b426dc54cf4056984bab7dfa48c92ee79a46434] bonding: remove hardcoded value testing commit 8b426dc54cf4056984bab7dfa48c92ee79a46434 with gcc (GCC) 5.5.0 run #0: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "44253" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor527416834" "root@localhost:/syz-executor527416834"] Warning: Permanently added '[localhost]:44253' (ECDSA) to the list of known hosts. run #1: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "35846" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor283282297" "root@localhost:/syz-executor283282297"] Warning: Permanently added '[localhost]:35846' (ECDSA) to the list of known hosts. run #2: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "59018" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor113326724" "root@localhost:/syz-executor113326724"] Warning: Permanently added '[localhost]:59018' (ECDSA) to the list of known hosts. run #3: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "45156" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor050030611" "root@localhost:/syz-executor050030611"] Warning: Permanently added '[localhost]:45156' (ECDSA) to the list of known hosts. run #4: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "14264" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor009344086" "root@localhost:/syz-executor009344086"] Warning: Permanently added '[localhost]:14264' (ECDSA) to the list of known hosts. run #5: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "45576" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor402074557" "root@localhost:/syz-executor402074557"] Warning: Permanently added '[localhost]:45576' (ECDSA) to the list of known hosts. run #6: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "60962" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor261029368" "root@localhost:/syz-executor261029368"] Warning: Permanently added '[localhost]:60962' (ECDSA) to the list of known hosts. run #7: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "15788" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor441076471" "root@localhost:/syz-executor441076471"] Warning: Permanently added '[localhost]:15788' (ECDSA) to the list of known hosts. run #8: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "31028" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor325751786" "root@localhost:/syz-executor325751786"] Warning: Permanently added '[localhost]:31028' (ECDSA) to the list of known hosts. run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "47605" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor772779585" "root@localhost:/syz-executor772779585"] Warning: Permanently added '[localhost]:47605' (ECDSA) to the list of known hosts. # git bisect skip 8b426dc54cf4056984bab7dfa48c92ee79a46434 Bisecting: 3 revisions left to test after this (roughly 2 steps) [dc9c4d0fe023b508f1b41dbe2a3f3133f81b4d29] bonding: reduce scope of some global variables testing commit dc9c4d0fe023b508f1b41dbe2a3f3133f81b4d29 with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: crashed: WARNING: ODEBUG bug in del_timer run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "23215" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor056971936" "root@localhost:/syz-executor056971936"]: exit status 1 ssh: connect to host localhost port 23215: Connection timed out lost connection run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: crashed: WARNING: ODEBUG bug in del_timer run #6: crashed: WARNING: ODEBUG bug in del_timer run #7: crashed: WARNING: ODEBUG bug in del_timer run #8: crashed: WARNING: ODEBUG bug in del_timer run #9: crashed: WARNING: ODEBUG bug in del_timer # git bisect bad dc9c4d0fe023b508f1b41dbe2a3f3133f81b4d29 Bisecting: 2 revisions left to test after this (roughly 2 steps) [4493b81bea24269df898339dee638d7c5cb2b2df] bonding: initialize work-queues during creation of bond testing commit 4493b81bea24269df898339dee638d7c5cb2b2df with gcc (GCC) 5.5.0 run #0: crashed: WARNING: ODEBUG bug in del_timer run #1: crashed: WARNING: ODEBUG bug in del_timer run #2: crashed: WARNING: ODEBUG bug in del_timer run #3: crashed: WARNING: ODEBUG bug in del_timer run #4: crashed: WARNING: ODEBUG bug in del_timer run #5: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "38141" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor417482312" "root@localhost:/syz-executor417482312"] Warning: Permanently added '[localhost]:38141' (ECDSA) to the list of known hosts. run #6: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "20591" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor065163015" "root@localhost:/syz-executor065163015"] Warning: Permanently added '[localhost]:20591' (ECDSA) to the list of known hosts. run #7: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "43949" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor125421754" "root@localhost:/syz-executor125421754"] Warning: Permanently added '[localhost]:43949' (ECDSA) to the list of known hosts. run #8: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "8775" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor183624401" "root@localhost:/syz-executor183624401"] Warning: Permanently added '[localhost]:8775' (ECDSA) to the list of known hosts. run #9: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "34902" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/usr/local/google/home/dvyukov/syzkaller/ci-bisect2/jobs/linux/workdir/image/key" "/tmp/syz-executor351618347" "root@localhost:/syz-executor351618347"] Warning: Permanently added '[localhost]:34902' (ECDSA) to the list of known hosts. # git bisect bad 4493b81bea24269df898339dee638d7c5cb2b2df Bisecting: 1 revision left to test after this (roughly 1 step) [96d7552e99393fdffddfc589e697c62a5fd98640] Merge branch 'nfp-crc32-rss-hash-port-name-reporting-and-misc-fastpath-cleanups' testing commit 96d7552e99393fdffddfc589e697c62a5fd98640 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 96d7552e99393fdffddfc589e697c62a5fd98640 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d5e73f7be850323ae3adbbe84ed37a38b0c31476] bonding: restructure arp-monitor testing commit d5e73f7be850323ae3adbbe84ed37a38b0c31476 with gcc (GCC) 5.5.0 all runs: OK # git bisect good d5e73f7be850323ae3adbbe84ed37a38b0c31476 4493b81bea24269df898339dee638d7c5cb2b2df is the first bad commit commit 4493b81bea24269df898339dee638d7c5cb2b2df Author: Mahesh Bandewar Date: Wed Mar 8 10:55:54 2017 -0800 bonding: initialize work-queues during creation of bond Initializing work-queues every time ifup operation performed is unnecessary and can be performed only once when the port is created. Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller drivers/net/bonding/bond_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) revisions tested: 26, total time: 5h41m52.819767462s (build: 1h44m35.710080435s, test: 3h52m11.357164607s) first bad commit: 4493b81bea24269df898339dee638d7c5cb2b2df bonding: initialize work-queues during creation of bond cc: ["andy@greyhouse.net" "davem@davemloft.net" "j.vosburgh@gmail.com" "linux-kernel@vger.kernel.org" "maheshb@google.com" "netdev@vger.kernel.org" "vfalico@gmail.com"] crash: WARNING: ODEBUG bug in del_timer device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state ------------[ cut here ]------------ WARNING: CPU: 1 PID: 2049 at lib/debugobjects.c:289 debug_print_object+0x17b/0x210 lib/debugobjects.c:286 ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 2049 Comm: kworker/u4:3 Not tainted 4.10.0+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0xe6/0x120 lib/dump_stack.c:52 panic+0x1b6/0x358 kernel/panic.c:180 __warn+0x18d/0x1b0 kernel/panic.c:541 warn_slowpath_fmt+0x92/0xb0 kernel/panic.c:564 debug_print_object+0x17b/0x210 lib/debugobjects.c:286 debug_object_assert_init+0x249/0x340 lib/debugobjects.c:652 debug_timer_assert_init kernel/time/timer.c:706 [inline] debug_assert_init kernel/time/timer.c:754 [inline] del_timer+0x6f/0xf0 kernel/time/timer.c:1139 try_to_grab_pending+0x21f/0x5a0 kernel/workqueue.c:1223 __cancel_work_timer+0xae/0x440 kernel/workqueue.c:2886 cancel_delayed_work_sync+0xe/0x10 kernel/workqueue.c:3047 bond_work_cancel_all drivers/net/bonding/bond_main.c:3245 [inline] bond_close+0x14/0x110 drivers/net/bonding/bond_main.c:3308 __dev_close_many+0x179/0x270 net/core/dev.c:1421 dev_close_many+0x1de/0x5f0 net/core/dev.c:1451 rollback_registered_many+0x361/0xcb0 net/core/dev.c:6819 unregister_netdevice_many+0x3e/0x200 net/core/dev.c:7881 default_device_exit_batch+0x2f9/0x3d0 net/core/dev.c:8333 ops_exit_list.isra.4+0xd6/0x120 net/core/net_namespace.c:144 cleanup_net+0x391/0x7d0 net/core/net_namespace.c:463 process_one_work+0x72f/0x16a0 kernel/workqueue.c:2096 worker_thread+0xe1/0x1110 kernel/workqueue.c:2230 kthread+0x2c9/0x3d0 kernel/kthread.c:229 ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430 Kernel Offset: disabled Rebooting in 86400 seconds..