bisecting cause commit starting from f8ad8187c3b536ee2b10502a8340c014204a1af0
building syzkaller on 52e3731913ab2677be27c29ed8142b04e8f28521
testing commit f8ad8187c3b536ee2b10502a8340c014204a1af0 with gcc (GCC) 8.1.0
kernel signature: 7f3772be7e927f066856033a6eb87dc3e9e15e146722fb205151f1208c86c7d0
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in dummy_timer
run #2: crashed: INFO: rcu detected stall in dummy_timer
run #3: crashed: INFO: rcu detected stall in dummy_timer
run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor356820943" "root@10.128.0.251:./syz-executor356820943"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor920590562" "root@10.128.0.253:./syz-executor920590562"]: exit status 1
Connection timed out during banner exchange
lost connection

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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor680686809" "root@10.128.1.31:./syz-executor680686809"]: exit status 1
ssh: connect to host 10.128.1.31 port 22: Connection 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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor335805555" "root@10.128.10.45:./syz-executor335805555"]: exit status 1
Connection timed out during banner exchange
lost connection

run #8: OK
run #9: OK
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 8.1.0
kernel signature: e508189465d39ffd8a9dcf9ccae50cef7d9bf7cb4686aa21cb801f2c95ce4704
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in dummy_timer
run #2: crashed: INFO: rcu detected stall in dummy_timer
run #3: crashed: INFO: rcu detected stall in dummy_timer
run #4: crashed: INFO: rcu detected stall in corrupted
run #5: crashed: INFO: rcu detected stall in dummy_timer
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor969303000" "root@10.128.0.236:./syz-executor969303000"]: exit status 1
ssh: connect to host 10.128.0.236 port 22: Connection timed out
lost connection

run #7: crashed: INFO: task hung in addrconf_dad_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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor134122186" "root@10.128.15.198:./syz-executor134122186"]: exit status 1
ssh: connect to host 10.128.15.198 port 22: Connection timed out
lost connection

run #9: OK
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 8.1.0
kernel signature: b0669908e972d5961842171da3a8b0dc1740fd1cd57a3632345365e6d92d2536
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in corrupted
run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor877469819" "root@10.128.0.182:./syz-executor877469819"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor950394270" "root@10.128.0.186:./syz-executor950394270"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor616942181" "root@10.128.0.193:./syz-executor616942181"]: exit status 1
ssh: connect to host 10.128.0.193 port 22: Connection 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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor110696064" "root@10.128.1.31:./syz-executor110696064"]: exit status 1
Connection timed out during banner exchange
lost connection

run #6: OK
run #7: OK
run #8: OK
run #9: OK
reproducer seems to be flaky
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0
kernel signature: ce3310a5b3e1c3295d73e0faafb06452de190f31f47c7d2c554179e95531b680
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor203846019" "root@10.128.1.46:./syz-executor203846019"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor140364038" "root@10.128.0.136:./syz-executor140364038"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor883939880" "root@10.128.0.21:./syz-executor883939880"]: exit status 1
ssh: connect to host 10.128.0.21 port 22: Connection timed out
lost connection

run #4: crashed: INFO: rcu detected stall in dummy_timer
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: 7cd99adf0fef5b2dcb30a48a4dca138dc666a4d8d6b386418460f81c452b4dbc
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in dummy_timer
run #2: crashed: INFO: rcu detected stall in dummy_timer
run #3: crashed: INFO: rcu detected stall in dummy_timer
run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor095221237" "root@10.128.0.135:./syz-executor095221237"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor753390722" "root@10.128.1.11:./syz-executor753390722"]: exit status 1
ssh: connect to host 10.128.1.11 port 22: Connection timed out
lost connection

run #6: OK
run #7: OK
run #8: crashed: INFO: rcu detected stall in dummy_timer
run #9: OK
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0
kernel signature: 2bb930b6a15dd564e179a871ba4f87042325a222665a423159f4869f66dfc247
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 with gcc (GCC) 8.1.0
kernel signature: 2b1f8b8fd5679129bf533347f20ee241f5ad591b5f772123e86a3386fe6eb2a4
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# 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 with gcc (GCC) 8.1.0
kernel signature: d4cac6e5ea7fb7af76c167193b509440b80342f9c6ec5dfa1ff67c8af7906541
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 with gcc (GCC) 8.1.0
kernel signature: 094397877d45d8c29770400ffe7b9eacfacdade1370432cce7590145114103e7
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# 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 with gcc (GCC) 8.1.0
kernel signature: 762f6a4ef5ae0e08f5a2527eaa666ea5757083ae38aed89bc2871089fba182d7
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in dummy_timer
run #2: crashed: INFO: rcu detected stall in dummy_timer
run #3: crashed: INFO: rcu detected stall in dummy_timer
run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor840329998" "root@10.128.10.62:./syz-executor840329998"]: exit status 1
ssh: connect to host 10.128.10.62 port 22: Connection 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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor224827919" "root@10.128.15.199:./syz-executor224827919"]: exit status 1
Connection timed out during banner exchange
lost connection

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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor154875938" "root@10.128.15.202:./syz-executor154875938"]: exit status 1
ssh: connect to host 10.128.15.202 port 22: Connection 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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor897096473" "root@10.128.15.198:./syz-executor897096473"]: exit status 1
Connection timed out during banner exchange
lost connection

run #8: OK
run #9: OK
# 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 with gcc (GCC) 8.1.0
kernel signature: d7b0938c475079d212f3e25ecef3069e337c64a8436702ccc03551647111bb32
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# 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 with gcc (GCC) 8.1.0
kernel signature: a1ffcbc9618ffa9238a1701515be7985fd715106a404bacc5e915cc144bd0606
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 with gcc (GCC) 8.1.0
kernel signature: 1499f9d6bfee819021139beee0236decc98971de3074d8d4e462a66120454bf1
run #0: crashed: INFO: rcu detected stall in dummy_timer
run #1: crashed: INFO: rcu detected stall in dummy_timer
run #2: crashed: INFO: rcu detected stall in dummy_timer
run #3: crashed: INFO: rcu detected stall in dummy_timer
run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor410998815" "root@10.128.10.37:./syz-executor410998815"]: exit status 1
Connection timed out during banner exchange
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" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor597208308" "root@10.128.15.196:./syz-executor597208308"]: exit status 1
Connection timed out during banner exchange
lost connection

run #6: OK
run #7: OK
run #8: OK
run #9: OK
# 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 with gcc (GCC) 8.1.0
kernel signature: 4a86aa560ad81af1a98ac9feecfc4893e308e34c0f55733d3fabd0a32b2750ec
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# 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 with gcc (GCC) 8.1.0
kernel signature: 4ca1dad21c0c4c56d373b77cc45778a45dc10415bfa9422770b66b49030f0ae5
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# 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 with gcc (GCC) 8.1.0
kernel signature: 4bff612c938a595ac56b44a38e71de62ca3bd7e28922a572be7991e923da3084
all runs: OK
# git bisect good 1592c4b9935fa8a3b7c297955bb872a357e5a3b6
Bisecting: 6274 revisions left to test after this (roughly 13 steps)
[763dafc520add02a1f4639b500c509acc0ea8e5b] audit: check the length of userspace generated audit records

testing commit 763dafc520add02a1f4639b500c509acc0ea8e5b with gcc (GCC) 8.1.0
kernel signature: a7f8b93ae3251b5884f3ac56fb0b30f3151beeeeb28b1ab9991bcee580499f3c
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 763dafc520add02a1f4639b500c509acc0ea8e5b
Bisecting: 6274 revisions left to test after this (roughly 13 steps)
[377f16ac67237c8cda05daf363bcbea95212b000] xfs: factor out a xfs_attr_match helper

testing commit 377f16ac67237c8cda05daf363bcbea95212b000 with gcc (GCC) 8.1.0
kernel signature: f5fd97e930a891fc8cbb8ea70aba70b6c872955a8747d8d2b09ca70360a8b10d
run #0: boot failed: can't ssh into the instance
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 377f16ac67237c8cda05daf363bcbea95212b000
Bisecting: 6274 revisions left to test after this (roughly 13 steps)
[a72d2401f54b7db41c77ab971238a06eafe929fb] gfs2: Allow some glocks to be used during withdraw

testing commit a72d2401f54b7db41c77ab971238a06eafe929fb with gcc (GCC) 8.1.0
kernel signature: 177a9482ba4e2894b227eb1f84e4739c218c984f21eeec8fe396a17a90f2397a
all runs: OK
# git bisect good a72d2401f54b7db41c77ab971238a06eafe929fb
Bisecting: 6274 revisions left to test after this (roughly 13 steps)
[5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc] Merge v5.6 into drm-next

testing commit 5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc with gcc (GCC) 8.1.0
kernel signature: b9da84a029c21271b4359c0af8a1b0d97c369e5f695f15f1a1defb0d18906b0a
all runs: OK
# git bisect good 5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc
Bisecting: 5319 revisions left to test after this (roughly 13 steps)
[848960e576dafc8ed54c691b2f70b92e1fdea9ba] Merge tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

testing commit 848960e576dafc8ed54c691b2f70b92e1fdea9ba with gcc (GCC) 8.1.0
kernel signature: 1d423258032dfbae410232082249a2b8848aeba34509cec6a59e904f4c60334a
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 848960e576dafc8ed54c691b2f70b92e1fdea9ba
Bisecting: 5319 revisions left to test after this (roughly 13 steps)
[2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45] Merge tag 'docs-5.6-fixes' into docs-next

testing commit 2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45 with gcc (GCC) 8.1.0
kernel signature: c04f68477c25a9ed0311b7f213ee895e0b313b169202c2188a5ff1553b3e2459
all runs: OK
# git bisect good 2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45
Bisecting: 5319 revisions left to test after this (roughly 13 steps)
[0830c0a4891f9de009dfaa585dfecefa4c67795b] Bluetooth: hci_h5: Move variable into local scope

testing commit 0830c0a4891f9de009dfaa585dfecefa4c67795b with gcc (GCC) 8.1.0
kernel signature: d17685969a0ee51e806e649df973394fd86a99c21a0c47bf055f9c913e966929
all runs: OK
# git bisect good 0830c0a4891f9de009dfaa585dfecefa4c67795b
Bisecting: 5319 revisions left to test after this (roughly 13 steps)
[7f218319caaaf6f2a43b22d8c82b898f32b4ec70] Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

testing commit 7f218319caaaf6f2a43b22d8c82b898f32b4ec70 with gcc (GCC) 8.1.0
kernel signature: dfcb149a52e682f7ac2fdc6171add5250b9be0ab329bda68210c4c74f3e2c4f4
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 7f218319caaaf6f2a43b22d8c82b898f32b4ec70
Bisecting: 5319 revisions left to test after this (roughly 13 steps)
[ec06dc15c358d3f41e9fd05872d772ed0f9fa32a] ASoC: dapm: select sleep_state when initializing PINCTRL widget

testing commit ec06dc15c358d3f41e9fd05872d772ed0f9fa32a with gcc (GCC) 8.1.0
kernel signature: d9585b448fdf3e79ede1f4c9c4fb44740821fe5641d6234eb592f9adc3e9b4a4
all runs: OK
# git bisect good ec06dc15c358d3f41e9fd05872d772ed0f9fa32a
Bisecting: 5319 revisions left to test after this (roughly 12 steps)
[d84edddc447df2d87e6ce9fbf94d95225504ab32] iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures

testing commit d84edddc447df2d87e6ce9fbf94d95225504ab32 with gcc (GCC) 8.1.0
kernel signature: e956b1569e12876deaed4c4bea6e3d04dc7c12148d38f293d294d36f8a2218ce
all runs: OK
# git bisect good d84edddc447df2d87e6ce9fbf94d95225504ab32
Bisecting: 5316 revisions left to test after this (roughly 12 steps)
[a3434a497a2f33324e0f47bc1500a400959b4b25] ASoC: jz4740-i2s: Add support for the JZ4770

testing commit a3434a497a2f33324e0f47bc1500a400959b4b25 with gcc (GCC) 8.1.0
kernel signature: 6d14efb043fcf21c931eba0b0ece4045845575f4f9f4afd0aef891d10205a0db
all runs: OK
# git bisect good a3434a497a2f33324e0f47bc1500a400959b4b25
Bisecting: 5316 revisions left to test after this (roughly 12 steps)
[0be44352071dc87a4f9bf879642b1d44876971d9] KVM: x86/mmu: Reuse the current root if possible for fast switch

testing commit 0be44352071dc87a4f9bf879642b1d44876971d9 with gcc (GCC) 8.1.0
kernel signature: d66084159d4b4916a3b3803ee52046b2df01cdd7557528d6426d219ddeb30b51
run #0: boot failed: can't ssh into the instance
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 0be44352071dc87a4f9bf879642b1d44876971d9
Bisecting: 5279 revisions left to test after this (roughly 12 steps)
[5c8db3eb381745c010ba746373a279e92502bdc8] Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

testing commit 5c8db3eb381745c010ba746373a279e92502bdc8 with gcc (GCC) 8.1.0
kernel signature: bb26b560136e297662e93c540a88da600dfbed88d5e8ae46ef570b688140e2bd
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 5c8db3eb381745c010ba746373a279e92502bdc8
Bisecting: 5279 revisions left to test after this (roughly 12 steps)
[4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3] net: ethernet: ti: ale: am65: add support for default thread cfg

Reproducer flagged being flaky
revisions tested: 29, total time: 8h4m14.687286246s (build: 2h44m45.923123529s, test: 5h16m4.067557669s)
error: bisection is taking too long (>8h0m0s), aborting