bisecting fixing commit since 7e96bf476270aecea66740a083e51b38c1371cd2 building syzkaller on c585c7b0ea16dc4326bf5e8f2f00cc6638e2feb1 testing commit 7e96bf476270aecea66740a083e51b38c1371cd2 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7135110cc54110305d1293c4c638b36319897e25d62f2d3f7b594842115c2fba 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" "/tmp/syz-executor107847212" "root@10.128.0.84:./syz-executor107847212"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.0.84 port 22 timed out lost connection run #1: OK run #2: OK 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" "/tmp/syz-executor757644031" "root@10.128.0.6:./syz-executor757644031"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.0.6 port 22 timed out lost connection run #4: OK run #5: OK run #6: 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" "/tmp/syz-executor660268679" "root@10.128.15.219:./syz-executor660268679"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.219 port 22 timed out lost connection run #7: OK run #8: OK run #9: 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" "/tmp/syz-executor519411770" "root@10.128.0.247:./syz-executor519411770"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.0.247 port 22 timed out lost connection run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: crashed: INFO: task hung in synchronize_rcu run #16: OK run #17: OK run #18: crashed: INFO: task hung in synchronize_rcu run #19: OK reproducer seems to be flaky testing current HEAD 5472f14a37421d1bca3dddf33cabd3bd6dbefbbc testing commit 5472f14a37421d1bca3dddf33cabd3bd6dbefbbc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b59b79e3f300d7dea2dc6e0b3cf8f2a65a7e9d8d56870de0a45894e9a7be4834 all runs: OK # git bisect start 5472f14a37421d1bca3dddf33cabd3bd6dbefbbc 7e96bf476270aecea66740a083e51b38c1371cd2 Bisecting: 14700 revisions left to test after this (roughly 14 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [1560081f4c4b5f0919244af7fc63d3d0de9db949] Merge series "ASoC: cs42l42: Fix definition and handling of jack switch invert" from Richard Fitzgerald : testing commit 1560081f4c4b5f0919244af7fc63d3d0de9db949 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ba1901d0767f54d14cbf27f569e14bfde1dbecb10e078bd544fdc035fdd9d065 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" "/tmp/syz-executor788611060" "root@10.128.15.196:./syz-executor788611060"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.196 port 22 timed out lost connection 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" "/tmp/syz-executor408309443" "root@10.128.15.193:./syz-executor408309443"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.193 port 22 timed out lost connection 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" "/tmp/syz-executor179980828" "root@10.128.10.28:./syz-executor179980828"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.10.28 port 22 timed out lost connection run #3: OK run #4: OK run #5: OK run #6: OK run #7: 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" "/tmp/syz-executor553075503" "root@10.128.15.205:./syz-executor553075503"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.205 port 22 timed out lost connection run #8: OK run #9: 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" "/tmp/syz-executor931924435" "root@10.128.15.211:./syz-executor931924435"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.211 port 22 timed out lost connection run #10: OK run #11: OK run #12: OK run #13: OK run #14: crashed: INFO: task hung in synchronize_rcu run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good 1560081f4c4b5f0919244af7fc63d3d0de9db949 Bisecting: 7322 revisions left to test after this (roughly 13 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [25edbc383b72c2364c7b339245c1c5db84e615e1] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma testing commit 25edbc383b72c2364c7b339245c1c5db84e615e1 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ea4c6a6a24b76a384518d00e045e19307a21972c140d9288c18e60ded85afbba 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" "/tmp/syz-executor456672952" "root@10.128.15.195:./syz-executor456672952"]: exit status 1 kex_exchange_identification: read: Connection reset by peer Connection reset by 10.128.15.195 port 22 lost connection 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" "/tmp/syz-executor633659905" "root@10.128.15.208:./syz-executor633659905"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.208 port 22 timed out lost connection 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" "/tmp/syz-executor878591852" "root@10.128.15.199:./syz-executor878591852"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.199 port 22 timed out lost connection 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" "/tmp/syz-executor126100443" "root@10.128.10.18:./syz-executor126100443"]: exit status 1 ssh: connect to host 10.128.10.18 port 22: Connection timed out lost connection run #4: OK run #5: 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" "/tmp/syz-executor676067198" "root@10.128.15.214:./syz-executor676067198"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.214 port 22 timed out lost connection run #6: basic kernel testing failed: failed to copy test binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor733134506" "root@10.128.15.201:./syz-executor733134506"] Warning: Permanently added '10.128.15.201' (ECDSA) to the list of known hosts. run #7: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #8: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #9: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #10: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #11: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #12: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #13: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #14: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #15: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #16: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #17: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #18: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #19: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred # git bisect good 25edbc383b72c2364c7b339245c1c5db84e615e1 Bisecting: 3630 revisions left to test after this (roughly 12 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4] Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci testing commit 0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b84cfafabbbce3a272932da08631a4eef5d944b5c1113d8035146d4242519469 all runs: OK # git bisect bad 0c5c62ddf88c34bc83b66e4ac9beb2bb0e1887d4 Bisecting: 1598 revisions left to test after this (roughly 11 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [5cd4dc44b8a0f656100e3b6916cf73b1623299eb] Merge tag 'staging-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit 5cd4dc44b8a0f656100e3b6916cf73b1623299eb compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d59695a032627689d0d4f4053f39f6b74c8ee3275fbd8075cc5316fd6c3a887a 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" "/tmp/syz-executor445058791" "root@10.128.1.12:./syz-executor445058791"]: exit status 1 ssh: connect to host 10.128.1.12 port 22: Connection timed out lost connection 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" "/tmp/syz-executor607716188" "root@10.128.10.62:./syz-executor607716188"]: exit status 1 ssh: connect to host 10.128.10.62 port 22: Connection timed out lost connection run #2: OK 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" "/tmp/syz-executor555736656" "root@10.128.15.200:./syz-executor555736656"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.200 port 22 timed out lost connection 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" "/tmp/syz-executor234422639" "root@10.128.15.209:./syz-executor234422639"]: exit status 1 ssh: connect to host 10.128.15.209 port 22: Connection timed out lost connection run #5: OK run #6: OK run #7: OK run #8: basic kernel testing failed: failed to copy test binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/tmp/syz-executor624913646" "root@10.128.15.195:./syz-executor624913646"] Warning: Permanently added '10.128.15.195' (ECDSA) to the list of known hosts. run #9: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #10: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #11: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #12: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #13: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #14: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #15: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #16: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #17: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #18: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #19: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred # git bisect good 5cd4dc44b8a0f656100e3b6916cf73b1623299eb Bisecting: 813 revisions left to test after this (roughly 10 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [a51e4a1acb5fa4ce0b0f0bd3606463a09e6fa1b0] Merge tag 'microblaze-v5.16' of git://git.monstr.eu/linux-2.6-microblaze testing commit a51e4a1acb5fa4ce0b0f0bd3606463a09e6fa1b0 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4f62a75ab439e6ee886b32cfb0d5d5dc7915c233c58fb8b7e338a7a74a60fd5e 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" "/tmp/syz-executor093726910" "root@10.128.15.200:./syz-executor093726910"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.200 port 22 timed out lost connection 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" "/tmp/syz-executor241212677" "root@10.128.15.198:./syz-executor241212677"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.198 port 22 timed out lost connection 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" "/tmp/syz-executor325890208" "root@10.128.15.207:./syz-executor325890208"]: exit status 1 ssh: connect to host 10.128.15.207 port 22: Connection timed out lost connection 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" "/tmp/syz-executor337857919" "root@10.128.10.63:./syz-executor337857919"]: exit status 1 ssh: connect to host 10.128.10.63 port 22: Connection timed out lost connection 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" "/tmp/syz-executor747258578" "root@10.128.15.212:./syz-executor747258578"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.212 port 22 timed out lost connection run #5: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #6: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #7: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #8: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #9: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #10: crashed: WARNING in rcu_check_gp_start_stall run #11: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #12: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #13: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #14: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #15: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #16: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #17: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #18: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #19: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred # git bisect good a51e4a1acb5fa4ce0b0f0bd3606463a09e6fa1b0 Bisecting: 422 revisions left to test after this (roughly 9 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [fe91c4725aeed35023ba4f7a1e1adfebb6878c23] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit fe91c4725aeed35023ba4f7a1e1adfebb6878c23 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: bff6838066b92563419fd29134ac659785e2455b104a82043a1b26289d72b5ea 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" "/tmp/syz-executor282271052" "root@10.128.10.56:./syz-executor282271052"]: exit status 1 ssh: connect to host 10.128.10.56 port 22: Connection timed out lost connection run #1: OK 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" "/tmp/syz-executor674776479" "root@10.128.15.210:./syz-executor674776479"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.210 port 22 timed out lost connection 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" "/tmp/syz-executor974568050" "root@10.128.15.212:./syz-executor974568050"]: exit status 1 ssh: connect to host 10.128.15.212 port 22: Connection timed out lost connection run #4: OK run #5: OK run #6: OK run #7: 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" "/tmp/syz-executor335379060" "root@10.128.0.117:./syz-executor335379060"]: exit status 1 ssh: connect to host 10.128.0.117 port 22: Connection timed out lost connection run #8: OK run #9: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #10: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #11: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #12: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #13: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #14: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #15: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #16: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #17: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #18: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred run #19: crashed: INFO: rcu detected stall in prog_array_map_clear_deferred # git bisect good fe91c4725aeed35023ba4f7a1e1adfebb6878c23 Bisecting: 211 revisions left to test after this (roughly 8 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [f9803a9918468d70d98d31c23cb7613d873e723f] MAINTAINERS: update SeongJae's email address testing commit f9803a9918468d70d98d31c23cb7613d873e723f compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc run #0: crashed: INFO: task hung in worker_thread 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: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good f9803a9918468d70d98d31c23cb7613d873e723f Bisecting: 109 revisions left to test after this (roughly 7 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [27e76d06bfb344f26707ef5699d672323c1ce50e] Merge branch 'remotes/lorenzo/pci/aardvark' testing commit 27e76d06bfb344f26707ef5699d672323c1ce50e compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 6f4c2dd69f0ae3c0ab5d2fffaddf84385190618bcfe8e5f4541d0c90bcb66179 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" "/tmp/syz-executor312777945" "root@10.128.10.9:./syz-executor312777945"]: exit status 1 kex_exchange_identification: read: Connection reset by peer Connection reset by 10.128.10.9 port 22 lost connection 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" "/tmp/syz-executor764413555" "root@10.128.10.52:./syz-executor764413555"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.10.52 port 22 timed out lost connection run #2: OK run #3: OK 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" "/tmp/syz-executor100021079" "root@10.128.15.212:./syz-executor100021079"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.212 port 22 timed out lost connection run #5: OK run #6: 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" "/tmp/syz-executor322665162" "root@10.128.10.25:./syz-executor322665162"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.10.25 port 22 timed out lost connection run #7: 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" "/tmp/syz-executor877284769" "root@10.128.0.192:./syz-executor877284769"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.0.192 port 22 timed out lost connection run #8: OK run #9: 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" "/tmp/syz-executor875989115" "root@10.128.15.211:./syz-executor875989115"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.211 port 22 timed out lost connection run #10: 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" "/tmp/syz-executor779159141" "root@10.128.15.219:./syz-executor779159141"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.219 port 22 timed out lost connection run #11: 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" "/tmp/syz-executor918041216" "root@10.128.15.222:./syz-executor918041216"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.222 port 22 timed out lost connection run #12: OK run #13: 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" "/tmp/syz-executor823723999" "root@10.128.15.214:./syz-executor823723999"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.214 port 22 timed out lost connection run #14: 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" "/tmp/syz-executor023633842" "root@10.128.15.215:./syz-executor023633842"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.215 port 22 timed out lost connection run #15: crashed: INFO: task hung in synchronize_rcu run #16: crashed: INFO: task hung in synchronize_rcu run #17: crashed: INFO: task hung in synchronize_rcu run #18: crashed: INFO: task hung in synchronize_rcu run #19: OK # git bisect good 27e76d06bfb344f26707ef5699d672323c1ce50e Bisecting: 53 revisions left to test after this (roughly 6 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [607f7f0b4cb22059a4ed4c2bb69987da9894f8a4] Merge branch 'pci/host/rcar' testing commit 607f7f0b4cb22059a4ed4c2bb69987da9894f8a4 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fa3c704b1296fb8922ce78c2f6477c5d1fb43a5f417fe3f0ac14c71c36687e0a run #0: OK run #1: OK 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" "/tmp/syz-executor377068527" "root@10.128.15.200:./syz-executor377068527"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.200 port 22 timed out lost connection run #3: OK 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" "/tmp/syz-executor242465985" "root@10.128.15.202:./syz-executor242465985"]: exit status 1 Connection timed out during banner exchange Connection to 10.128.15.202 port 22 timed out lost connection run #5: OK run #6: crashed: WARNING in send_hsr_supervision_frame run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: crashed: INFO: task hung in __lru_add_drain_all run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: crashed: INFO: task hung in synchronize_rcu # git bisect good 607f7f0b4cb22059a4ed4c2bb69987da9894f8a4 Bisecting: 26 revisions left to test after this (roughly 5 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [d7d0ec85e983945079364db3c3d2d80cc795a48c] mm/damon/dbgfs: support quotas of schemes testing commit d7d0ec85e983945079364db3c3d2d80cc795a48c compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc all runs: OK # git bisect bad d7d0ec85e983945079364db3c3d2d80cc795a48c Bisecting: 13 revisions left to test after this (roughly 4 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [68536f8e01e571f553f78fa058ba543de3834452] Docs/admin-guide/mm/damon: document DAMON-based Operation Schemes testing commit 68536f8e01e571f553f78fa058ba543de3834452 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc run #0: crashed: INFO: task hung in synchronize_rcu 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: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect good 68536f8e01e571f553f78fa058ba543de3834452 Bisecting: 6 revisions left to test after this (roughly 3 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [c638072107f52ec35f292c97b6f3df9b9f2ed87d] Docs/DAMON: document physical memory monitoring support testing commit c638072107f52ec35f292c97b6f3df9b9f2ed87d compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc all runs: OK # git bisect bad c638072107f52ec35f292c97b6f3df9b9f2ed87d Bisecting: 3 revisions left to test after this (roughly 2 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [c2fe4987ed31c32591c9aea5a1e8e2540ce66e12] Docs/admin-guide/mm/damon: document 'init_regions' feature testing commit c2fe4987ed31c32591c9aea5a1e8e2540ce66e12 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc all runs: OK # git bisect bad c2fe4987ed31c32591c9aea5a1e8e2540ce66e12 Bisecting: 0 revisions left to test after this (roughly 1 step) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [1c2e11bfa649cc07e6322b0e5ea3cdbada9c43c3] mm/damon/dbgfs-test: add a unit test case for 'init_regions' testing commit 1c2e11bfa649cc07e6322b0e5ea3cdbada9c43c3 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc all runs: OK # git bisect bad 1c2e11bfa649cc07e6322b0e5ea3cdbada9c43c3 Bisecting: 0 revisions left to test after this (roughly 0 steps) warning: unable to access '/syzkaller/.config/git/ignore': Permission denied warning: unable to access '/syzkaller/.config/git/attributes': Permission denied [90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6] mm/damon/dbgfs: allow users to set initial monitoring target regions testing commit 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc all runs: OK # git bisect bad 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6 warning: unable to access '/syzkaller/.config/git/attributes': Permission denied 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6 is the first bad commit commit 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6 Author: SeongJae Park Date: Fri Nov 5 13:46:42 2021 -0700 mm/damon/dbgfs: allow users to set initial monitoring target regions Patch series "DAMON: Support Physical Memory Address Space Monitoring:. DAMON currently supports only virtual address spaces monitoring. It can be easily extended for various use cases and address spaces by configuring its monitoring primitives layer to use appropriate primitives implementations, though. This patchset implements monitoring primitives for the physical address space monitoring using the structure. The first 3 patches allow the user space users manually set the monitoring regions. The 1st patch implements the feature in the 'damon-dbgfs'. Then, patches for adding a unit tests (the 2nd patch) and updating the documentation (the 3rd patch) follow. Following 4 patches implement the physical address space monitoring primitives. The 4th patch makes some primitive functions for the virtual address spaces primitives reusable. The 5th patch implements the physical address space monitoring primitives. The 6th patch links the primitives to the 'damon-dbgfs'. Finally, 7th patch documents this new features. This patch (of 7): Some 'damon-dbgfs' users would want to monitor only a part of the entire virtual memory address space. The program interface users in the kernel space could use '->before_start()' callback or set the regions inside the context struct as they want, but 'damon-dbgfs' users cannot. For that reason, this introduces a new debugfs file called 'init_region'. 'damon-dbgfs' users can specify which initial monitoring target address regions they want by writing special input to the file. The input should describe each region in each line in the below form: Note that the regions will be updated to cover entire memory mapped regions after a 'regions update interval' is passed. If you want the regions to not be updated after the initial setting, you could set the interval as a very long time, say, a few decades. Link: https://lkml.kernel.org/r/20211012205711.29216-1-sj@kernel.org Link: https://lkml.kernel.org/r/20211012205711.29216-2-sj@kernel.org Signed-off-by: SeongJae Park Cc: Jonathan Cameron Cc: Amit Shah Cc: Benjamin Herrenschmidt Cc: Jonathan Corbet Cc: David Hildenbrand Cc: David Woodhouse Cc: Marco Elver Cc: Leonard Foerster Cc: Greg Thelen Cc: Markus Boehme Cc: David Rienjes Cc: Shakeel Butt Cc: Shuah Khan Cc: Brendan Higgins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds mm/damon/dbgfs.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 154 insertions(+), 2 deletions(-) culprit signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc parent signature: 80299a32cbbe7755adae0e67be47dbd0c4f228199313fded9f6e5b105df521dc Reproducer flagged being flaky revisions tested: 17, total time: 4h30m18.772205579s (build: 1h53m47.315122798s, test: 2h34m36.494785606s) first good commit: 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6 mm/damon/dbgfs: allow users to set initial monitoring target regions recipients (to): ["akpm@linux-foundation.org" "sj@kernel.org" "torvalds@linux-foundation.org"] recipients (cc): []