bisecting cause commit starting from 1fc596a56b334f4d593a2b49e5ff55af6aaa0816
building syzkaller on be531bb42381b245eed805e49fd889d1c2118c76
testing commit 1fc596a56b334f4d593a2b49e5ff55af6aaa0816
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: df469117eeb74b119d544ba150623473aa49587defcd82a2ffc17c7c3bb722a6
run #0: crashed: INFO: task hung in io_uring_release
run #1: crashed: INFO: task hung in io_uring_release
run #2: crashed: INFO: task hung in io_uring_try_cancel_requests
run #3: crashed: INFO: task hung in io_uring_release
run #4: crashed: INFO: task hung in io_uring_release
run #5: crashed: INFO: task hung in io_uring_release
run #6: crashed: INFO: task hung in io_uring_release
run #7: crashed: INFO: task hung in io_uring_release
run #8: crashed: INFO: task hung in io_uring_release
run #9: crashed: INFO: task hung in io_uring_release
run #10: crashed: INFO: task hung in io_uring_try_cancel_requests
run #11: crashed: INFO: task hung in io_uring_try_cancel_requests
run #12: crashed: INFO: task hung in io_uring_try_cancel_requests
run #13: crashed: INFO: task hung in io_uring_release
run #14: crashed: INFO: task hung in io_uring_release
run #15: crashed: INFO: task hung in io_uring_try_cancel_requests
run #16: crashed: INFO: task hung in io_uring_try_cancel_requests
run #17: crashed: INFO: task hung in io_uring_try_cancel_requests
run #18: crashed: INFO: task hung in io_uring_release
run #19: crashed: INFO: task hung in io_uring_try_cancel_requests
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 836d1ba0693bb05668a15eadc4e121d3411fd2de1d5a1d53ebf89379cea0ad68
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-executor668358874" "root@10.128.0.112:./syz-executor668358874"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.0.112 port 22 timed out
lost connection

run #1: crashed: WARNING in io_ring_exit_work
run #2: crashed: WARNING in io_ring_exit_work
run #3: crashed: WARNING in io_ring_exit_work
run #4: crashed: WARNING in io_ring_exit_work
run #5: crashed: WARNING in io_ring_exit_work
run #6: crashed: WARNING in io_ring_exit_work
run #7: crashed: WARNING in io_ring_exit_work
run #8: 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-executor132117930" "root@10.128.1.81:./syz-executor132117930"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.1.81 port 22 timed out
lost connection

run #9: OK
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 7d990a6930244c1a0f6fe089eb262673495ef144df42cca789a37ab3b235ed03
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-executor188171884" "root@10.128.1.160:./syz-executor188171884"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.1.160 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-executor782159067" "root@10.128.15.193:./syz-executor782159067"]: 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-executor322901118" "root@10.128.1.209:./syz-executor322901118"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.1.209 port 22 timed out
lost connection

run #3: crashed: no output from test machine
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-executor443155519" "root@10.128.15.195:./syz-executor443155519"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.15.195 port 22 timed out
lost connection

run #5: crashed: WARNING in io_ring_exit_work
run #6: crashed: WARNING in io_ring_exit_work
run #7: crashed: WARNING in io_ring_exit_work
run #8: crashed: WARNING in io_ring_exit_work
run #9: crashed: WARNING in io_ring_exit_work
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: d15c232baf4eaf932118de885cb9d080778facfa64cbc13a90b07d14e9a6a9a5
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-executor337497166" "root@10.128.10.54:./syz-executor337497166"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.10.54 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-executor560292693" "root@10.128.10.44:./syz-executor560292693"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.10.44 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-executor959665328" "root@10.128.10.49:./syz-executor959665328"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.10.49 port 22 timed out
lost connection

run #3: crashed: unregister_netdevice: waiting for DEV to become free
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-executor246798415" "root@10.128.1.131:./syz-executor246798415"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.1.131 port 22 timed out
lost connection

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-executor945247577" "root@10.128.10.48:./syz-executor945247577"]: exit status 1
Connection timed out during banner exchange
Connection to 10.128.10.48 port 22 timed out
lost connection

run #6: crashed: WARNING in io_ring_exit_work
run #7: crashed: WARNING in io_ring_exit_work
run #8: crashed: WARNING in io_ring_exit_work
run #9: crashed: WARNING in io_ring_exit_work
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 85df232aa498d8c9bd658816bd421b314fd2fc41ebb1bebb6fc3748486e36f1f
all runs: crashed: no output from test machine
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 143313765c513b3fa00ba737af1aca84d5b6623aaa5ea93341fa8e13f9a4fdc2
all runs: crashed: no output from test machine
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 95683c3f4845cfe4505f373b2c918c9a8fa246b6c7cf277d281db0b4cd07a057
run #0: crashed: INFO: task hung in io_uring_release
run #1: crashed: INFO: task hung in io_uring_release
run #2: crashed: INFO: task hung in io_uring_release
run #3: crashed: INFO: task hung in io_uring_release
run #4: crashed: no output from test machine
run #5: crashed: no output from test machine
run #6: crashed: no output from test machine
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 0d7b975c5a2e26dcb4c9b7c60dacd1bdce8c70afbf96456b7702758a4ecd4530
all runs: crashed: no output from test machine
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b59dbca75ffea477f571ffd37526ee93f56f9679888ba529950b13a40e979d6f
all runs: crashed: no output from test machine
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5b264f2f99e4b000a8f95bff6d13a27e39add1ce24d96e364ffb3cffdfaca9b8
all runs: OK
# git bisect start 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 7111951b8d4973bda27ff663f2cf18b663d15b48
Bisecting: 7542 revisions left to test after this (roughly 13 steps)
[50a5de895dbe5df947b3a695777db5b2c313e065] Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

testing commit 50a5de895dbe5df947b3a695777db5b2c313e065
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ff9b609c4fee545b851cc46f456c5d4746b1859229a38d8a3f7cc774b41dcb42
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 50a5de895dbe5df947b3a695777db5b2c313e065
Bisecting: 7542 revisions left to test after this (roughly 13 steps)
[422c032afcf57d5e8109a54912e22ffc53d99068] netfilter: flowtable: Use rw sem as flow block lock

testing commit 422c032afcf57d5e8109a54912e22ffc53d99068
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: aafd4ae66b1bcfbe1a2ec7d0c13a41c304706acc16f3ef1760d59cc1d467f61a
all runs: OK
# git bisect good 422c032afcf57d5e8109a54912e22ffc53d99068
Bisecting: 6728 revisions left to test after this (roughly 13 steps)
[8c1b724ddb218f221612d4c649bc9c7819d8d7a6] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

testing commit 8c1b724ddb218f221612d4c649bc9c7819d8d7a6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f438a01fad0165e0eabd75aa90ab48f2ddb872a5f0d55c5658c8f2d0d9ffcae9
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #7: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #8: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 8c1b724ddb218f221612d4c649bc9c7819d8d7a6
Bisecting: 6728 revisions left to test after this (roughly 13 steps)
[88d7fcfa3b1fe670f0412b95be785aafca63352b] net: inet_csk: Fix so_reuseport bind-address cache in tb->fast*

testing commit 88d7fcfa3b1fe670f0412b95be785aafca63352b
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 28df9208a3b0ce1da0cf40aa1cb39f27e8f3c8af73e872356b149c436bd9bc89
run #0: OK
run #1: crashed: no output from test machine
run #2: crashed: no output from test machine
run #3: crashed: no output from test machine
run #4: crashed: no output from test machine
run #5: crashed: no output from test machine
run #6: crashed: no output from test machine
run #7: crashed: no output from test machine
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
# git bisect bad 88d7fcfa3b1fe670f0412b95be785aafca63352b
Bisecting: 6383 revisions left to test after this (roughly 13 steps)
[6cad420cc695867b4ca710bac21fde21a4102e4b] Merge branch 'akpm' (patches from Andrew)

testing commit 6cad420cc695867b4ca710bac21fde21a4102e4b
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b852b667e8a39d79204b0bc1c7848f29635c06b68dadb0195c8970c064548e9e
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #4: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #5: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #6: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #7: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 6cad420cc695867b4ca710bac21fde21a4102e4b
Bisecting: 6383 revisions left to test after this (roughly 13 steps)
[77a36a3ab4ff17fad23831192e3694a3c5a1750d] HID: Add driver fixing Glorious PC Gaming Race mouse report descriptor

testing commit 77a36a3ab4ff17fad23831192e3694a3c5a1750d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fc40e25355848da3d992dbb9258c65a7e73b7ae1915d9f2035e1ffdd7ca9f500
all runs: OK
# git bisect good 77a36a3ab4ff17fad23831192e3694a3c5a1750d
Bisecting: 6383 revisions left to test after this (roughly 13 steps)
[8ec91c0fce1500306a858d0c35d1383fd9eb6ba6] Merge tag 'gpio-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

testing commit 8ec91c0fce1500306a858d0c35d1383fd9eb6ba6
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: de56437f5dca3b12a58ee3c7123cc0cb3c40d178cb44c4ebf519338e292c732b
all runs: crashed: no output from test machine
# git bisect bad 8ec91c0fce1500306a858d0c35d1383fd9eb6ba6
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[7be97138e7276c71cc9ad1752dcb502d28f4400d] Merge tag 'xfs-5.7-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

testing commit 7be97138e7276c71cc9ad1752dcb502d28f4400d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7d331846aec673e1efed8b48922bd9b88c826a3412084b6601420fe55bb28841
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #7: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 7be97138e7276c71cc9ad1752dcb502d28f4400d
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[f5637d3b42ab0465ef71d5fb8461bce97fba95e8] mm/memory_hotplug: rename mhp_restrictions to mhp_params

testing commit f5637d3b42ab0465ef71d5fb8461bce97fba95e8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1f7dcd3892d72c64b8b5e7c8f512acaea21b33e2b462d5ffcd4e9910693a8490
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #6: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #7: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip f5637d3b42ab0465ef71d5fb8461bce97fba95e8
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[1592c4b9935fa8a3b7c297955bb872a357e5a3b6] pinctrl: sprd: Add pin high impedance mode support

testing commit 1592c4b9935fa8a3b7c297955bb872a357e5a3b6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b796e9a094bca9dc8d218c1c005885614675f893515d2890e573e99ce96249f0
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #7: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #8: OK
run #9: OK
# git bisect skip 1592c4b9935fa8a3b7c297955bb872a357e5a3b6
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[da722186f6549d752ea5b5fbc18111833c81a133] net: fec: set GPR bit on suspend by DT configuration.

testing commit da722186f6549d752ea5b5fbc18111833c81a133
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 98a346e5641975804de1a934cfb115cb3e0f2cac8546ee7fb83e00957c32ac73
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip da722186f6549d752ea5b5fbc18111833c81a133
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[96b06c0a16f737e9ea7dff1e23dd5f6d847e6731] Revert "staging: octeon-usb: delete the octeon usb host controller driver"

testing commit 96b06c0a16f737e9ea7dff1e23dd5f6d847e6731
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: adad245c85b29d6a11c077b002c2194e96e17fbc98ae632c356acc631600cbb3
all runs: OK
# git bisect good 96b06c0a16f737e9ea7dff1e23dd5f6d847e6731
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[4ef873226ceb9c7bf11a922caddc5698a24bcfaf] mm: introduce fault_signal_pending()

testing commit 4ef873226ceb9c7bf11a922caddc5698a24bcfaf
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7410bae1f3e51e77d6849ac0cf38dc0a0c7461410b72915b9046115b312c28a7
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 4ef873226ceb9c7bf11a922caddc5698a24bcfaf
Bisecting: 6337 revisions left to test after this (roughly 13 steps)
[74b58db8b7edfadff4a1ed2eb195ab45570a33a9] crypto: hisilicon/sec2 - Add pbuffer mode for SEC driver

testing commit 74b58db8b7edfadff4a1ed2eb195ab45570a33a9
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b1c3a8e6cb98d709076bc580feb727afca21bdd589d241bf2524b9acdf28aa64
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
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 74b58db8b7edfadff4a1ed2eb195ab45570a33a9
Bisecting: 6181 revisions left to test after this (roughly 13 steps)
[bb4328f6b9cb5ae7e7a59033bd89fc3aead91599] drm/i915/selftest: Add more poison patterns

testing commit bb4328f6b9cb5ae7e7a59033bd89fc3aead91599
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 73b1a03eb72cbaecf217fd8ad9e52801ad145266d3fd325ee6d477b3e0d24ae0
all runs: OK
# git bisect good bb4328f6b9cb5ae7e7a59033bd89fc3aead91599
Bisecting: 5840 revisions left to test after this (roughly 13 steps)
[11786191e2d946410cf5fde482b10cdd5356e76c] Merge tag 'hwlock-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

testing commit 11786191e2d946410cf5fde482b10cdd5356e76c
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2ef18d6d7b780b9e3dad50b858754df1e502184590364dfb493b791d68767a39
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip 11786191e2d946410cf5fde482b10cdd5356e76c
Bisecting: 5840 revisions left to test after this (roughly 13 steps)
[4dc8207bfd45799525f882e1039e63e9438d605e] drivers/base/memory: store mapping between MMOP_* and string in an array

testing commit 4dc8207bfd45799525f882e1039e63e9438d605e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 17de4b97cc846c387c760bff80361f47f4fec00a4cbd5f26ab35db88c1073fa6
all runs: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
# git bisect skip 4dc8207bfd45799525f882e1039e63e9438d605e
Bisecting: 5840 revisions left to test after this (roughly 13 steps)
[95f67ef3d2638d1bf24edb74a4b959dc361635b9] staging: wfx: remove blank line

testing commit 95f67ef3d2638d1bf24edb74a4b959dc361635b9
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b85d0481991d2071fbf9d69b94a158753c409482d9065b21fcffb9412f9149d8
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #7: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #8: OK
run #9: OK
# git bisect skip 95f67ef3d2638d1bf24edb74a4b959dc361635b9
Bisecting: 5840 revisions left to test after this (roughly 13 steps)
[630f289b7114c0e68519cbd634e2b7ec804ca8c5] asm-generic: make more kernel-space headers mandatory

testing commit 630f289b7114c0e68519cbd634e2b7ec804ca8c5
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7ac832834e196a5c76589fd5cd5d2ec8624f78b9e289b1e342b965c314bde3ad
all runs: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
# git bisect skip 630f289b7114c0e68519cbd634e2b7ec804ca8c5
Bisecting: 5840 revisions left to test after this (roughly 13 steps)
[41a70b7f4734fc4f8982a31c8c505357b4adacaa] serial: 8250: Deduplicate rs485 active_timer assignment

testing commit 41a70b7f4734fc4f8982a31c8c505357b4adacaa
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: dc8b18873a98c28218d39b4822f6dc24737fcf6f0b14d120d353a4a261eb28d0
all runs: OK
# git bisect good 41a70b7f4734fc4f8982a31c8c505357b4adacaa
Bisecting: 5774 revisions left to test after this (roughly 13 steps)
[bc3b3f4bfbded031a11c4284106adddbfacd05bb] Merge tag 'pinctrl-v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

testing commit bc3b3f4bfbded031a11c4284106adddbfacd05bb
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: aad35ff1dd4ceb05f83a6dd778661f9411379c51a6a051dc5bf326d69992e07f
run #0: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #1: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #2: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #3: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #4: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #5: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #6: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #7: boot failed: create image operation failed: &{Code:ZONE_RESOURCE_POOL_EXHAUSTED_WITH_DETAILS Location: Message:The zone 'projects/syzkaller/zones/us-central1-c' does not have enough resources available to fulfill the request.  '(resource type:compute)'. ForceSendFields:[] NullFields:[]}.
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(NUM,NUM)
# git bisect skip bc3b3f4bfbded031a11c4284106adddbfacd05bb
Bisecting: 5774 revisions left to test after this (roughly 13 steps)
[765bfcd59a1ff799b1c71cb3be0c43b0775ec166] ext4: delete declaration for ext4_split_extent()

revisions tested: 31, total time: 8h10m10.375168052s (build: 3h16m0.9632312s, test: 4h49m41.662725809s)
error: bisection is taking too long (>8h0m0s), aborting