bisecting cause commit starting from 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb
building syzkaller on a5f86b15f4f60350198e4b98fb7451d45d38a186
testing commit 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb with gcc (GCC) 10.2.1 20210217
kernel signature: 84293c503d70ba330eb747ecf755802154629e6c70c64af49c773d9af3b8f5cc
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217
kernel signature: 023084790012a2dae24637c36cb931cab146c3de9ad59118796efbd7f8485088
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217
kernel signature: fd8adb4da0cb7aaf02efbf01b0e65caa24d5c450f9f93290c1188a5eaf2fbd53
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217
kernel signature: bc15835df41e22b71ee025c396837d9813d60b777c72f202512d1172a53ddcef
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217
kernel signature: b1c6b1d85af457a0b0dc2d9d092f5cc25cca921a7be4fa2a26887b6a8b7ea6b7
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217
kernel signature: 4f807b324a7864428478741fb07e524a909538aab034f03c9042c733c6b7fa37
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) 8.4.1 20210217
kernel signature: 66394c820dd42a8fc37bb24f90992b2e1d0b4b462cd431b2000fe0adaeb3ba82
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) 8.4.1 20210217
kernel signature: bcbd740788a755250093d7a97eb2719942c4a8cccec31d961119db63a308ec81
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) 8.4.1 20210217
kernel signature: 6a72d093fbf1822d4f175b2381a0f00b3d25759d9ad0c6d85f0b9e5182304ede
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) 8.4.1 20210217
kernel signature: d0f3243d7ca8ff10a65e57f32be9373ec9b8cd75ff35b8561144f9bc9be7c59f
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
# 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) 8.4.1 20210217
kernel signature: b6aa7b0d171ce2375e99b26a3b408d35b04c721f7e585ead9e869af6fad0c618
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) 8.4.1 20210217
kernel signature: 16321dad71384b8ea130500e8e490347e07dfed8260a923204bb5e3ab8a344db
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) 8.4.1 20210217
kernel signature: 3b520a5f1f46c215bb1a5de6bbfed5ef8225ecc540f687a98319d2f4432a21b6
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
# 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) 8.4.1 20210217
kernel signature: 9ea6e09efb672cd65ebb0cbd9051a0f89a5fd23eac66dc72ff383e2099f89dad
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) 8.4.1 20210217
kernel signature: d8e854879347c58f870043e726136b7b5e7384cbcd76b1ba6df8c21801437253
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) 8.4.1 20210217
kernel signature: 104555bfc48a5cb78d343f703f06eec31e6a50de140cb7da0b23f913deab8bcc
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) 8.4.1 20210217
kernel signature: 7d020513607dff8a080aca78a52125936bfb4af521ba73d85af8aacf889799e5
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) 8.4.1 20210217
kernel signature: f81efe8e83e7d947a2f7e2dc066f79537e0b9f1c0d6ba744ee448cb19695119d
all runs: 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) 8.4.1 20210217
kernel signature: f062129ff8d3f2abab4402dac1406662083d678e1f0757e20a45ddc7390d7ba7
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) 8.4.1 20210217
kernel signature: 6e93b95b945311c6e37ea7887df85faccd6b1df108c8ab08e0d50cd5a7609f94
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) 8.4.1 20210217
kernel signature: 4aa24db9b4e8a8917864b8d91ca731ed1b05f40fb32879773cf9bb0dca30ea81
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) 8.4.1 20210217
kernel signature: e7344630392f456b53dcf3df741692044bd9693e4a4d602d9b44605e633b2ea0
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) 8.4.1 20210217
kernel signature: 919b1863fe340a7769a4b188902b76b6571ab00e5fa47e2793989813e73a79da
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) 8.4.1 20210217
kernel signature: 26c225cf3b38800ef65bacb98637e69b8ee0be6494f87d7e5daf8939ce54db85
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) 8.4.1 20210217
kernel signature: 3853a8cfd603c77df91e12e1e2186ad16320bcb57284f94a934cfad1c8a9bfce
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) 8.4.1 20210217
kernel signature: caee1c7c3ec151f12948e3274433addc73eb6aa6a9e6d32c58b27eae0cbbf8db
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) 8.4.1 20210217
kernel signature: 74a840d90dcd922e1e241627a68f476dceece242c1ccafed44afa09c352b6d74
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) 8.4.1 20210217
kernel signature: 59f1f407831d136373da4782f385f8c6c4cae2c6cf4f23c937f86fd6642c6523
all runs: 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) 8.4.1 20210217
kernel signature: 7039b5be39833b8b9a721d09ef075887b801db20ba3e2d6b343497fb14793211
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

testing commit 4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3 with gcc (GCC) 8.4.1 20210217
kernel signature: 63535a72623ce91b4b13b38474c68f9910190e0154b301ecdb2da9450f11d972
all runs: OK
# git bisect good 4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3
Bisecting: 5081 revisions left to test after this (roughly 12 steps)
[e109f506074152b7241bcbd3949a099e776cb802] Merge tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

testing commit e109f506074152b7241bcbd3949a099e776cb802 with gcc (GCC) 8.4.1 20210217
kernel signature: 3b3fa6a3ac4c30b26adc94e62c53533d0c92c6561ad2d2b499788d56741a68c5
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip e109f506074152b7241bcbd3949a099e776cb802
Bisecting: 5081 revisions left to test after this (roughly 12 steps)
[a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6] drm/msm/a6xx: Use the DMA API for GMU memory objects

testing commit a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6 with gcc (GCC) 8.4.1 20210217
kernel signature: 3f5a6cb2c3bc0bcee714f405be0c30b646c045e3daa3c4819e69cb8eb8d65611
all runs: OK
# git bisect good a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6
Bisecting: 5081 revisions left to test after this (roughly 12 steps)
[7289fdb5dcdbc5155b5531529c44105868a762f2] KVM: Remove CREATE_IRQCHIP/SET_PIT2 race

revisions tested: 32, total time: 8h9m13.890371977s (build: 3h44m54.053628445s, test: 4h19m50.734226184s)
error: bisection is taking too long (>8h0m0s), aborting