ci starts bisection 2022-11-22 00:13:09.426916302 +0000 UTC m=+29148.642519983
bisecting cause commit starting from eb7081409f94a9a8608593d0fb63a1aa3d6f95d8
building syzkaller on 1c576c232f825266983096180b3603005edc458e
ensuring issue is reproducible on original commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8

testing commit eb7081409f94a9a8608593d0fb63a1aa3d6f95d8 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 9b29e1b9b010b16be5d6dbefe89f8eb826618f791e0f64e9d59b28f07b900309
all runs: crashed: WARNING in notify_change
testing release v6.0
testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 7bf2b5279c2749a2dd119f3e3601a878771f6217f893d78b8ff9fcdcdfdea78e
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 75ba0695ce44097dbdacf23813edb95257372166b2d4bd4bf592a9f7542f9cc1
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: crashed: INFO: task hung in fuse_simple_request
run #6: crashed: INFO: task hung in fuse_simple_request
run #7: crashed: INFO: task hung in fuse_simple_request
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: OK
testing release v5.18
testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 80129d5d1108753f7facb93b544fd45246c464cce4275153a3518c023c5ead29
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 9432c7a0f7b9cb1c01d8bffc161595e6a293362136dd50ba002821af67bd9501
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.16
testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 91992ae05370236a15c26c816558d77c83386bf9091e6e8dd0792886a8799ec0
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e580e1916c288028ff8522073f2e4637c7e66b5acd39e0d3716b038867ddcb21
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 897d0140c8abe6d8bd09623e0885fe21bcd2137219bf70cf44e8a8f42c6cd97e
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 471012b8b4b3056603d0fb7a9d0c66eababf88ba66002382dd8c97605521e030
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: OK
run #6: crashed: INFO: task hung in fuse_simple_request
run #7: crashed: INFO: task hung in fuse_simple_request
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: crashed: INFO: task hung in fuse_simple_request
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a23b052f521de823a202819bf0df903bb2c5b5bdd235b9a685bd4d9dc6ae18ab
all runs: OK
# git bisect start 62fb9874f5da54fdb243003b386128037319b219 9f4ad9e425a1d3b6a34617b8ea226d56a119a717
Bisecting: 8739 revisions left to test after this (roughly 13 steps)
[85f3f17b5db2dd9f8a094a0ddc665555135afd22] Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.13

testing commit 85f3f17b5db2dd9f8a094a0ddc665555135afd22 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a90f40814d8025ff868debf14c0fe241a0c65181cfc81eb7befbad2383e6dbfc
failed: failed to create VM pool: failed to create GCE image: create image operation failed: &{Code:PERMISSIONS_ERROR ErrorDetails:[] Location: Message:Required 'read' permission for 'disks/ci-upstream-kasan-gce-bisect-job-bisect-job-image.tar.gz' ForceSendFields:[] NullFields:[]}.
# git bisect skip 85f3f17b5db2dd9f8a094a0ddc665555135afd22
Bisecting: 8739 revisions left to test after this (roughly 13 steps)
[a421d218603ffa822a0b8045055c03eae394a7eb] NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()

testing commit a421d218603ffa822a0b8045055c03eae394a7eb gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: eab5826e53e3835449b0bb12333ec247b41e1e419d10d44b7e5f575c334c9491
run #0: crashed: INFO: task hung in fuse_simple_request
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
reproducer seems to be flaky
# git bisect bad a421d218603ffa822a0b8045055c03eae394a7eb
Bisecting: 7702 revisions left to test after this (roughly 13 steps)
[35655ceb31b56cd1cb52635a725dfcdb9662d7b7] Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

testing commit 35655ceb31b56cd1cb52635a725dfcdb9662d7b7 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 541b8c14665e5133398140e72abfb0d2bf88d8475a2500e011d873f6ed1f7dda
run #0: OK
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: crashed: INFO: task hung in fuse_simple_request
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 35655ceb31b56cd1cb52635a725dfcdb9662d7b7
Bisecting: 3834 revisions left to test after this (roughly 12 steps)
[55ba0fe059a577fa08f23223991b24564962620f] Merge tag 'for-5.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

testing commit 55ba0fe059a577fa08f23223991b24564962620f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: cedcb6ee0256e2862c54ba18f2d0d9263fa27c556ee4d1d8735fc1369b712b90
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: OK
run #3: OK
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: crashed: INFO: task hung in fuse_simple_request
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 55ba0fe059a577fa08f23223991b24564962620f
Bisecting: 1887 revisions left to test after this (roughly 11 steps)
[8900d92fd666d936a7bfb4c567ac26736a414fb4] Merge tag 'staging-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

testing commit 8900d92fd666d936a7bfb4c567ac26736a414fb4 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 09f99cd8efe0ddf057d83ec802379886f39186555b8fb8354c6eba7264028d8e
run #0: OK
run #1: OK
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: crashed: INFO: task hung in fuse_simple_request
run #10: crashed: INFO: task hung in fuse_simple_request
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 8900d92fd666d936a7bfb4c567ac26736a414fb4
Bisecting: 970 revisions left to test after this (roughly 10 steps)
[8e3a3249502d8ff92d73d827fb41dd44c5a16f76] Merge tag 'char-misc-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

testing commit 8e3a3249502d8ff92d73d827fb41dd44c5a16f76 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 12f1437d6789e29f484c2abbc162684db5b729922793d644ccccb25f81ba493a
run #0: OK
run #1: OK
run #2: OK
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: crashed: INFO: task hung in fuse_simple_request
run #10: crashed: INFO: task hung in fuse_simple_request
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 8e3a3249502d8ff92d73d827fb41dd44c5a16f76
Bisecting: 471 revisions left to test after this (roughly 9 steps)
[31a24ae89c92d5533c049046a76c6a2d649efb72] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

testing commit 31a24ae89c92d5533c049046a76c6a2d649efb72 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 176e5d13e00d1d34f6b17e4e22368bbe40538c348adfe677b4a1276b481ff23d
run #0: crashed: INFO: task hung in fuse_simple_request
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 bad 31a24ae89c92d5533c049046a76c6a2d649efb72
Bisecting: 258 revisions left to test after this (roughly 8 steps)
[47e12f14108170c36af9a0ee2271abb3dfb73e0e] Merge tag 'x86_vmware_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

testing commit 47e12f14108170c36af9a0ee2271abb3dfb73e0e gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 84ff7f032317bc60dc6d2e822038b8e263b7310ff9ad702e3714129ba434389f
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 47e12f14108170c36af9a0ee2271abb3dfb73e0e
Bisecting: 124 revisions left to test after this (roughly 7 steps)
[3d8c5f5a08c39835a365c69d1a6d9518722ed19e] crypto: rockchip - delete unneeded variable initialization

testing commit 3d8c5f5a08c39835a365c69d1a6d9518722ed19e gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 19b63cef4f8a408b34eee9acb75efc6a62eaf00f7dc0c3eadfaf697e8e214d40
run #0: 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" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.43:./syz-fuzzer"]
Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts.

run #1: boot failed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: boot failed: WARNING in kvm_wait
run #7: boot failed: WARNING in kvm_wait
run #8: boot failed: WARNING in kvm_wait
run #9: boot failed: WARNING in kvm_wait
run #10: boot failed: WARNING in kvm_wait
run #11: boot failed: WARNING in kvm_wait
run #12: crashed: INFO: task hung in fuse_simple_request
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 3d8c5f5a08c39835a365c69d1a6d9518722ed19e
Bisecting: 59 revisions left to test after this (roughly 6 steps)
[3877869d13a043a2dbab0d034e5eac3b21f4994d] Merge branch 'ecc'

testing commit 3877869d13a043a2dbab0d034e5eac3b21f4994d gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 1a96a48fba31c57f1bc88468e134afe0a1425ea1dd25dc4bbd2f3d0d393eb504
run #0: boot failed: WARNING in kvm_wait
run #1: boot failed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: boot failed: WARNING in kvm_wait
run #7: boot failed: WARNING in kvm_wait
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 3877869d13a043a2dbab0d034e5eac3b21f4994d
Bisecting: 32 revisions left to test after this (roughly 5 steps)
[8123455a648581ed08b1740e4fc33863eb353687] crypto: hisilicon/hpre - add version adapt to new algorithms

testing commit 8123455a648581ed08b1740e4fc33863eb353687 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: c6a9ec8659ff3e19431de9ce839d68057a9c5167724055561490e6e491668781
run #0: 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" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.38:./syz-fuzzer"]
Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts.

run #1: crashed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: boot failed: WARNING in kvm_wait
run #7: boot failed: WARNING in kvm_wait
run #8: boot failed: WARNING in kvm_wait
run #9: boot failed: WARNING in kvm_wait
run #10: boot failed: WARNING in kvm_wait
run #11: boot failed: WARNING in kvm_wait
run #12: crashed: INFO: task hung in fuse_simple_request
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: crashed: INFO: task hung in fuse_simple_request
run #18: OK
run #19: OK
# git bisect bad 8123455a648581ed08b1740e4fc33863eb353687
Bisecting: 15 revisions left to test after this (roughly 4 steps)
[02d0dae3ce2adb5549c7f6c6e714181ed6ee100d] crypto: qce - Set ivsize to 0 for ecb(aes)

testing commit 02d0dae3ce2adb5549c7f6c6e714181ed6ee100d gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 539e43297829b771dbbc86df16d28776beb169860474fa4d4a20d736d14cccd6
run #0: basic kernel testing failed: failed to copy syz-execprog 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" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-execprog" "root@10.128.15.198:./syz-execprog"]
Warning: Permanently added '10.128.15.198' (ECDSA) to the list of known hosts.

run #1: boot failed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: crashed: INFO: task hung in fuse_simple_request
run #7: crashed: INFO: task hung in fuse_simple_request
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 02d0dae3ce2adb5549c7f6c6e714181ed6ee100d
Bisecting: 8 revisions left to test after this (roughly 3 steps)
[4ab6093ba4b1a29da192da666a73d74f54fde649] crypto: serpent - Fix sparse byte order warnings

testing commit 4ab6093ba4b1a29da192da666a73d74f54fde649 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 539e43297829b771dbbc86df16d28776beb169860474fa4d4a20d736d14cccd6
run #0: boot failed: WARNING in kvm_wait
run #1: boot failed: WARNING in kvm_wait
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: crashed: INFO: task hung in fuse_simple_request
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 4ab6093ba4b1a29da192da666a73d74f54fde649
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[8fb7bd312fdb7e38261515b53f7dbd2665bda6ad] hwrng: xiphera-trng - use devm_platform_ioremap_resource() to simplify

testing commit 8fb7bd312fdb7e38261515b53f7dbd2665bda6ad gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
run #0: boot failed: WARNING in kvm_wait
run #1: boot failed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: OK
run #7: OK
run #8: OK
run #9: crashed: INFO: task hung in fuse_simple_request
run #10: OK
run #11: OK
run #12: OK
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad 8fb7bd312fdb7e38261515b53f7dbd2665bda6ad
Bisecting: 1 revision left to test after this (roughly 1 step)
[3e2ccc7454510e0990104eaf6f24f34be121dabb] hwrng: ba431 - Use device-managed registration

testing commit 3e2ccc7454510e0990104eaf6f24f34be121dabb gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
run #0: boot failed: WARNING in kvm_wait
run #1: boot failed: WARNING in kvm_wait
run #2: boot failed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: crashed: INFO: task hung in fuse_simple_request
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 bad 3e2ccc7454510e0990104eaf6f24f34be121dabb
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7] crypto: powepc/sha1 - remove unneeded semicolon

testing commit da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
run #0: 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" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.212:./syz-fuzzer"]
Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts.

run #1: basic kernel testing failed: failed to copy syz-execprog 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" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-execprog" "root@10.128.15.208:./syz-execprog"]
Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts.

run #2: crashed: WARNING in kvm_wait
run #3: boot failed: WARNING in kvm_wait
run #4: boot failed: WARNING in kvm_wait
run #5: boot failed: WARNING in kvm_wait
run #6: boot failed: WARNING in kvm_wait
run #7: OK
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: crashed: INFO: task hung in fuse_simple_request
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: OK
run #19: OK
# git bisect bad da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7
da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7 is the first bad commit
commit da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7
Author: Yang Li <yang.lee@linux.alibaba.com>
Date:   Mon Feb 8 17:10:38 2021 +0800

    crypto: powepc/sha1 - remove unneeded semicolon
    
    Eliminate the following coccicheck warning:
    ./arch/powerpc/crypto/sha1-spe-glue.c:110:2-3: Unneeded semicolon
    
    Reported-by: Abaci Robot <abaci@linux.alibaba.com>
    Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

 arch/powerpc/crypto/sha1-spe-glue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

parent commit a38fd8748464831584a19438cbb3082b5a2dab15 wasn't tested
testing commit a38fd8748464831584a19438cbb3082b5a2dab15 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
culprit signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
parent  signature: 72283b909ceeff9498bdf299dbfb3b7b54e86f140058813af0497c4c341a3645
Reproducer flagged being flaky
revisions tested: 26, total time: 7h58m16.426520418s (build: 3h11m1.779627972s, test: 4h43m10.017666255s)
first bad commit: da3c6c836fb1a0b9f08a7efabbfb7e31a0c816f7 crypto: powepc/sha1 - remove unneeded semicolon
recipients (to): ["davem@davemloft.net" "herbert@gondor.apana.org.au" "herbert@gondor.apana.org.au" "linux-crypto@vger.kernel.org" "yang.lee@linux.alibaba.com"]
recipients (cc): ["benh@kernel.crashing.org" "linux-kernel@vger.kernel.org" "linuxppc-dev@lists.ozlabs.org" "mpe@ellerman.id.au" "paulus@samba.org"]
crash: INFO: task hung in fuse_simple_request
INFO: task syz-executor549:8196 blocked for more than 143 seconds.
      Not tainted 5.12.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor549 state:D stack:27488 pid: 8196 ppid:  8181 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4324 [inline]
 __schedule+0x8de/0x2170 kernel/sched/core.c:5075
 schedule+0xcf/0x270 kernel/sched/core.c:5154
 request_wait_answer+0x39b/0x6c0 fs/fuse/dev.c:411
 __fuse_request_send fs/fuse/dev.c:430 [inline]
 fuse_simple_request+0x41a/0xb10 fs/fuse/dev.c:515
 fuse_file_fallocate+0x2e2/0x700 fs/fuse/file.c:3299
 vfs_fallocate+0x2a5/0xaf0 fs/open.c:311
 ioctl_preallocate+0x145/0x1c0 fs/ioctl.c:494
 file_ioctl fs/ioctl.c:534 [inline]
 do_vfs_ioctl+0xb53/0xd70 fs/ioctl.c:732
 __do_sys_ioctl fs/ioctl.c:751 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0xc5/0x190 fs/ioctl.c:739
 do_syscall_64+0x2d/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f217d3885b9
RSP: 002b:00007f217d33a2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f217d4144c0 RCX: 00007f217d3885b9
RDX: 00000000200001c0 RSI: 0000000040305828 RDI: 0000000000000004
RBP: 00007f217d3e20d4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
R13: 00007f217d3de0c8 R14: 00007f217d3e00d0 R15: 00007f217d4144c8

Showing all locks held in the system:
1 lock held by khungtaskd/1624:
 #0: ffffffff8ab6c040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6327
2 locks held by getty/5092:
 #0: ffff888022b0c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:266
 #1: ffffc900016062e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xa69/0xfa0 drivers/tty/n_tty.c:2178
1 lock held by syz-executor549/8196:
 #0: ffff88801b67a460 (sb_writers#13){.+.+}-{0:0}, at: ioctl_preallocate+0x145/0x1c0 fs/ioctl.c:494

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1624 Comm: khungtaskd Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0xa5/0xe6 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x30/0x99 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0x956/0xc30 kernel/hung_task.c:294
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x161/0x1c0 drivers/acpi/processor_idle.c:516