bisecting cause commit starting from 1a147b74c2fd4058dea0133cb2471724c3b3de09 building syzkaller on 05736b290dd5af17adbb0fb5ea67405a0167a7c8 testing commit 1a147b74c2fd4058dea0133cb2471724c3b3de09 with gcc (GCC) 8.1.0 kernel signature: 076623fe3ce58f9e7194f4d21f0925ade39849a0dbbdd645ed837e2739f8a9be all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: 77835020c11f7689ef970944e73eb0139e61f69e91a0aa366577af1547d4a22f all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 39a4386d722ab0679dd5cc6ba1ad73ddc68036595c9df28336dc2cc35bd0db24 all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 0e70f6fc5281ec9589defc5592136d4cca3004a63ff276dd766906778bf481c1 all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: 0ecdae2f24be68c34fc4c314c6f6bd87e478d4c300d2178e5fd10b955e78f659 all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: f5e1aa1ed40f859c049893aa657f4371a6322fc4adceee2febfbf60598239d0e all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: 6f4137cfe71d5afe33175d9bec258061f4b7d800b07142a047213c3c3e5e3645 all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 96d82cff4e02f466d3b0e49e73496bd8db7f075efe2fe9f2c66b64b7ef6e69b8 all runs: crashed: WARNING in ext4_da_update_reserve_space testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: 61c827548fc499ce0e900d34ec4868f25c6a5057c3334309da7876e0b671893f run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor747289325" "root@10.128.0.232:./syz-executor747289325"]: exit status 1 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. scp: ./syz-executor747289325: No space left on device run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: 0328ea80524ae8a361e2245b1ec21a09bb404d831050c7e1614ed4c29072825b run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor696815684" "root@10.128.0.64:./syz-executor696815684"]: exit status 1 Warning: Permanently added '10.128.0.64' (ECDSA) to the list of known hosts. scp: ./syz-executor696815684: No space left on device run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor599890966" "root@10.128.0.226:./syz-executor599890966"]: exit status 1 Warning: Permanently added '10.128.0.226' (ECDSA) to the list of known hosts. scp: ./syz-executor599890966: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor246439549" "root@10.128.0.166:./syz-executor246439549"]: exit status 1 Warning: Permanently added '10.128.0.166' (ECDSA) to the list of known hosts. scp: ./syz-executor246439549: No space left on device run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor902197688" "root@10.128.0.171:./syz-executor902197688"]: exit status 1 Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. scp: ./syz-executor902197688: No space left on device run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor257573290" "root@10.128.0.35:./syz-executor257573290"]: exit status 1 Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. scp: ./syz-executor257573290: No space left on device run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect start 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d 94710cac0ef4ee177a63b5227664b38c95bbf703 Bisecting: 7596 revisions left to test after this (roughly 13 steps) [db06f826ec12bf0701ea7fc0a3c0aa00b84417c8] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux testing commit db06f826ec12bf0701ea7fc0a3c0aa00b84417c8 with gcc (GCC) 8.1.0 kernel signature: 7ecd216a0cf0a8bd80e065c1b9d8b2d0790bae97bb97ef6f0b4edfcc8f074b36 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor773707235" "root@10.128.0.246:./syz-executor773707235"]: exit status 1 Warning: Permanently added '10.128.0.246' (ECDSA) to the list of known hosts. scp: ./syz-executor773707235: No space left on device 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 db06f826ec12bf0701ea7fc0a3c0aa00b84417c8 Bisecting: 3768 revisions left to test after this (roughly 12 steps) [cd9b44f90763c3367e8dd0601849ffb028e8ba52] Merge branch 'akpm' (patches from Andrew) testing commit cd9b44f90763c3367e8dd0601849ffb028e8ba52 with gcc (GCC) 8.1.0 kernel signature: fe3b5e1b60c7dd5c6e738a83f704720604f86b8926711be5dd56613dcfd5e147 run #0: crashed: general protection fault in batadv_iv_ogm_queue_add 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 bad cd9b44f90763c3367e8dd0601849ffb028e8ba52 Bisecting: 2297 revisions left to test after this (roughly 11 steps) [336722eb9d9732c5a497fb6299bf38cde413592b] Merge tag 'tty-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty testing commit 336722eb9d9732c5a497fb6299bf38cde413592b with gcc (GCC) 8.1.0 kernel signature: ebcd9dadd55d4eab12369b8f7c6048f828752268c4ac92dc17c11fb43b4cf48c run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor964409689" "root@10.128.1.28:./syz-executor964409689"]: exit status 1 Warning: Permanently added '10.128.1.28' (ECDSA) to the list of known hosts. scp: ./syz-executor964409689: No space left on device 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 bad 336722eb9d9732c5a497fb6299bf38cde413592b Bisecting: 739 revisions left to test after this (roughly 10 steps) [5e2d059b52e397d9ac42f4c4d9d9a841887b5818] Merge tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux testing commit 5e2d059b52e397d9ac42f4c4d9d9a841887b5818 with gcc (GCC) 8.1.0 kernel signature: eb654a91b9977c8c9145ac6f39c1a57d13e54b1b9ae46aa4e22374e1292d7bc4 run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor551570188" "root@10.128.15.194:./syz-executor551570188"]: exit status 1 Warning: Permanently added '10.128.15.194' (ECDSA) to the list of known hosts. scp: ./syz-executor551570188: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor049881183" "root@10.128.10.61:./syz-executor049881183"]: exit status 1 Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts. scp: ./syz-executor049881183: No space left on device run #3: crashed: KASAN: use-after-free Write in batadv_iv_ogm_schedule run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 5e2d059b52e397d9ac42f4c4d9d9a841887b5818 Bisecting: 347 revisions left to test after this (roughly 9 steps) [4e31843f681c34f7185e7d169fe627c9d891ce2c] Merge tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci testing commit 4e31843f681c34f7185e7d169fe627c9d891ce2c with gcc (GCC) 8.1.0 kernel signature: 64f5e71112d394832f2693b7684cb5f47dbe2e085eb641df19bbc39b9fd6f8d3 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor408074292" "root@10.128.15.199:./syz-executor408074292"]: exit status 1 Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. scp: ./syz-executor408074292: No space left on device run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor044397736" "root@10.128.10.9:./syz-executor044397736"]: exit status 1 Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. scp: ./syz-executor044397736: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor026767964" "root@10.128.15.204:./syz-executor026767964"]: exit status 1 Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts. scp: ./syz-executor026767964: No space left on device run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 4e31843f681c34f7185e7d169fe627c9d891ce2c Bisecting: 173 revisions left to test after this (roughly 8 steps) [ba72dc171954b782a79d25e0f4b3ed91090c3b1e] powerpc/pseries: Query hypervisor for count cache flush settings testing commit ba72dc171954b782a79d25e0f4b3ed91090c3b1e with gcc (GCC) 8.1.0 kernel signature: b0db6ba9f25b95c0c95d55663fc538b5ebd28d3968a88e40b3fdc13a9b076fc8 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor652152441" "root@10.128.10.40:./syz-executor652152441"]: exit status 1 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. scp: ./syz-executor652152441: No space left on device run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor292078355" "root@10.128.15.197:./syz-executor292078355"]: exit status 1 Warning: Permanently added '10.128.15.197' (ECDSA) to the list of known hosts. scp: ./syz-executor292078355: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor454223190" "root@10.128.15.198:./syz-executor454223190"]: exit status 1 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. scp: ./syz-executor454223190: No space left on device run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good ba72dc171954b782a79d25e0f4b3ed91090c3b1e Bisecting: 77 revisions left to test after this (roughly 7 steps) [b0e5c29426940bd6f137b6a3222fe87766323ae5] Merge tag 'for-4.19/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm testing commit b0e5c29426940bd6f137b6a3222fe87766323ae5 with gcc (GCC) 8.1.0 kernel signature: a7a5fe390eb7423d93ed6afec09de1db12eedb369700260ae9f5822f131e599b run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor031100681" "root@10.128.15.198:./syz-executor031100681"]: exit status 1 Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts. scp: ./syz-executor031100681: No space left on device 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 b0e5c29426940bd6f137b6a3222fe87766323ae5 Bisecting: 38 revisions left to test after this (roughly 5 steps) [baedcdf5054c151a33e34392af7d8c3a244f16e6] powerpc/kexec: Use common error handling code in setup_new_fdt() testing commit baedcdf5054c151a33e34392af7d8c3a244f16e6 with gcc (GCC) 8.1.0 kernel signature: b22a6bec44eaee9dd00647151adc164b133729f9f7ada4dad11a5b20049a1d23 run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor711607624" "root@10.128.0.147:./syz-executor711607624"]: exit status 1 Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. scp: ./syz-executor711607624: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor613336870" "root@10.128.0.220:./syz-executor613336870"]: exit status 1 Warning: Permanently added '10.128.0.220' (ECDSA) to the list of known hosts. scp: ./syz-executor613336870: No space left on device run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor347049991" "root@10.128.0.187:./syz-executor347049991"]: exit status 1 Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. scp: ./syz-executor347049991: No space left on device run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor666245163" "root@10.128.0.62:./syz-executor666245163"]: exit status 1 Warning: Permanently added '10.128.0.62' (ECDSA) to the list of known hosts. scp: ./syz-executor666245163: No space left on device run #5: crashed: general protection fault in batadv_iv_ogm_queue_add run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad baedcdf5054c151a33e34392af7d8c3a244f16e6 Bisecting: 19 revisions left to test after this (roughly 4 steps) [a7c81ce398e2ad304f61d6167155f3ef65a96524] powerpc/64: Make exception table clearer in __copy_tofrom_user_base testing commit a7c81ce398e2ad304f61d6167155f3ef65a96524 with gcc (GCC) 8.1.0 kernel signature: 878c1002baba7188da335fdd799b3c398a35d4f0ccd00ef6783bd59312cfc49c run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor508928496" "root@10.128.0.28:./syz-executor508928496"]: exit status 1 Warning: Permanently added '10.128.0.28' (ECDSA) to the list of known hosts. scp: ./syz-executor508928496: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor978430626" "root@10.128.10.37:./syz-executor978430626"]: exit status 1 Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. scp: ./syz-executor978430626: No space left on device run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor167037174" "root@10.128.15.212:./syz-executor167037174"]: exit status 1 Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts. scp: ./syz-executor167037174: No space left on device run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad a7c81ce398e2ad304f61d6167155f3ef65a96524 Bisecting: 9 revisions left to test after this (roughly 3 steps) [88b0fe17573592a8e3196bf143f865da460178e7] powerpc: Add show_user_instructions() testing commit 88b0fe17573592a8e3196bf143f865da460178e7 with gcc (GCC) 8.1.0 kernel signature: 1d8139bcddbb75a5912fdc51f45b9bf04dcbeaa2d9293d642e74a5d3ed45ae69 run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor934531422" "root@10.128.0.56:./syz-executor934531422"]: exit status 1 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. scp: ./syz-executor934531422: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor882394271" "root@10.128.1.49:./syz-executor882394271"]: exit status 1 Warning: Permanently added '10.128.1.49' (ECDSA) to the list of known hosts. scp: ./syz-executor882394271: No space left on device run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 88b0fe17573592a8e3196bf143f865da460178e7 Bisecting: 4 revisions left to test after this (roughly 2 steps) [8e4bdc699bf32c58bfff7b2bfac204a6bf5efb69] selftests/powerpc: Add more version checks to alignment_handler test testing commit 8e4bdc699bf32c58bfff7b2bfac204a6bf5efb69 with gcc (GCC) 8.1.0 kernel signature: 593d06f0dc79fc23a7adb73848983723d98428ae6309a5429207ac5ad276d2f9 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor825180020" "root@10.128.1.45:./syz-executor825180020"]: exit status 1 Warning: Permanently added '10.128.1.45' (ECDSA) to the list of known hosts. scp: ./syz-executor825180020: No space left on device run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor619467843" "root@10.128.1.34:./syz-executor619467843"]: exit status 1 Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. scp: ./syz-executor619467843: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor557303661" "root@10.128.1.59:./syz-executor557303661"]: exit status 1 Warning: Permanently added '10.128.1.59' (ECDSA) to the list of known hosts. scp: ./syz-executor557303661: No space left on device run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor313986460" "root@10.128.15.209:./syz-executor313986460"]: exit status 1 Warning: Permanently added '10.128.15.209' (ECDSA) to the list of known hosts. scp: ./syz-executor313986460: No space left on device run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 8e4bdc699bf32c58bfff7b2bfac204a6bf5efb69 Bisecting: 2 revisions left to test after this (roughly 1 step) [35a52a10c3ac5b425ff85c12913458b4741ab866] powerpc/traps: Use an explicit ratelimit state for show_signal_msg() testing commit 35a52a10c3ac5b425ff85c12913458b4741ab866 with gcc (GCC) 8.1.0 kernel signature: 29ad0cd22b565cb25e8a79f09215286fe05706197ee70d560e61a2f41b6374ff run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: crashed: WARNING in batadv_mcast_mla_tt_retract run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor234743874" "root@10.128.10.36:./syz-executor234743874"]: exit status 1 Warning: Permanently added '10.128.10.36' (ECDSA) to the list of known hosts. scp: ./syz-executor234743874: No space left on device run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 35a52a10c3ac5b425ff85c12913458b4741ab866 Bisecting: 0 revisions left to test after this (roughly 0 steps) [658b0f92bc7003bc734471f61bf7cd56339eb8c3] powerpc/traps: Print unhandled signals in a separate function testing commit 658b0f92bc7003bc734471f61bf7cd56339eb8c3 with gcc (GCC) 8.1.0 kernel signature: 9c2b08bc4c35de56b203eb4c90a29c2970ff04f5d5079703952c69a06c585a14 run #0: crashed: general protection fault in batadv_iv_ogm_queue_add run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor283529258" "root@10.128.10.40:./syz-executor283529258"]: exit status 1 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. scp: ./syz-executor283529258: No space left on device run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor955657601" "root@10.128.10.53:./syz-executor955657601"]: exit status 1 Warning: Permanently added '10.128.10.53' (ECDSA) to the list of known hosts. scp: ./syz-executor955657601: No space left on device run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor838981374" "root@10.128.10.61:./syz-executor838981374"]: exit status 1 Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts. scp: ./syz-executor838981374: No space left on device run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor998635077" "root@10.128.10.63:./syz-executor998635077"]: exit status 1 Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. scp: ./syz-executor998635077: No space left on device run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 658b0f92bc7003bc734471f61bf7cd56339eb8c3 658b0f92bc7003bc734471f61bf7cd56339eb8c3 is the first bad commit commit 658b0f92bc7003bc734471f61bf7cd56339eb8c3 Author: Murilo Opsfelder Araujo Date: Wed Aug 1 18:33:15 2018 -0300 powerpc/traps: Print unhandled signals in a separate function Isolate the logic of printing unhandled signals out of _exception_pkey(). No functional change, only code rearrangement. Signed-off-by: Murilo Opsfelder Araujo Signed-off-by: Michael Ellerman arch/powerpc/kernel/traps.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) culprit signature: 9c2b08bc4c35de56b203eb4c90a29c2970ff04f5d5079703952c69a06c585a14 parent signature: 593d06f0dc79fc23a7adb73848983723d98428ae6309a5429207ac5ad276d2f9 revisions tested: 23, total time: 5h24m23.604173391s (build: 2h8m9.825861804s, test: 3h14m18.656838552s) first bad commit: 658b0f92bc7003bc734471f61bf7cd56339eb8c3 powerpc/traps: Print unhandled signals in a separate function cc: ["benh@kernel.crashing.org" "linux-kernel@vger.kernel.org" "linuxppc-dev@lists.ozlabs.org" "mpe@ellerman.id.au" "muriloo@linux.ibm.com" "paulus@samba.org"] crash: general protection fault in batadv_iv_ogm_queue_add batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 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: 68 Comm: kworker/u4:3 Not tainted 4.18.0-rc3-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:785 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 a2 0b 00 00 RSP: 0018:ffff8800a981faa0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88009d9f56c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8800a981fbb8 R08: ffff8800a73f7ac0 R09: 0000000000000001 R10: ffffed0013b3eadf R11: ffff88009d9f56fb R12: ffff8800a73f7ac0 R13: ffff8800a73f7b54 R14: 0000000000000400 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8800aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200006c0 CR3: 000000009b321000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: batadv_iv_ogm_schedule+0x7e9/0xf40 net/batman-adv/bat_iv_ogm.c:973 batadv_iv_send_outstanding_bat_ogm_packet+0x4b2/0x7b0 net/batman-adv/bat_iv_ogm.c:1817 process_one_work+0x830/0x1650 kernel/workqueue.c:2153 worker_thread+0x85/0xb60 kernel/workqueue.c:2296 kthread+0x316/0x3d0 kernel/kthread.c:240 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:412 Modules linked in: ---[ end trace 44af07251cf60cab ]--- RIP: 0010:batadv_iv_ogm_queue_add+0x9b/0xe50 net/batman-adv/bat_iv_ogm.c:785 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 a2 0b 00 00 RSP: 0018:ffff8800a981faa0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88009d9f56c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: ffff8800a981fbb8 R08: ffff8800a73f7ac0 R09: 0000000000000001 R10: ffffed0013b3eadf R11: ffff88009d9f56fb R12: ffff8800a73f7ac0 R13: ffff8800a73f7b54 R14: 0000000000000400 R15: 000000000000003c FS: 0000000000000000(0000) GS:ffff8800aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200006c0 CR3: 000000009e9ce000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400