bisecting cause commit starting from 20f1b5f9c07ca3a49e869327d4705b4254258756 building syzkaller on 607e3baf1c25928040d05fc22eff6fce7edd709e testing commit 20f1b5f9c07ca3a49e869327d4705b4254258756 with gcc (GCC) 10.2.1 20210217 kernel signature: 632a27bbf0535a22d19996fa687a0fd751438e3801aea8169be4de6c71cd8181 all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: 5c643a348412391009cab5f5d8db832b5e7f79b46f5f09332842aa5764453385 all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: d66bdc02a9d848e263aec7fd7e2ba3a19ab82535f342666de81bca04069e2fa5 all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: e0b93c2d684f4d7402b69a7f8914dfda28c0e501735cd11fb2a07df9304a8389 all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: 0d296e56790b9ab0ad8dcc0e88234d3bd5a37d7be90f7666a2e065e8d9040927 all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: 30bb8568dd39869a7d1597402c993d3f551d458038bb013eb5050757dec24aad all runs: crashed: WARNING in firmware_fallback_sysfs testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: 7d8971fd9d35d0039efe21f67504b0d17fb8d9a231225ba019bb01fe15ae81c7 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: 25168ecad8a5d39a1cb9ec94e8100e4952928080804118c69f3224de325df1a4 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: ebeb513737cbbec58d8ca7c1cf6715affd79b46f423deef4d8ea1af51dc4b81a 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: bf99ea549ebc56fa4012d4c651ec0d0b59a5145df7d93433fe9975ef8478981b 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: 2b2c092690f96e7b67f4c06d3ead75d1c890c17f2427669c5763ea0a05d9f328 run #0: crashed: WARNING in firmware_fallback_sysfs run #1: crashed: WARNING in firmware_fallback_sysfs run #2: crashed: WARNING in firmware_fallback_sysfs run #3: crashed: WARNING in firmware_fallback_sysfs run #4: crashed: WARNING in firmware_fallback_sysfs run #5: crashed: WARNING in firmware_fallback_sysfs run #6: crashed: WARNING in firmware_fallback_sysfs run #7: crashed: WARNING in firmware_fallback_sysfs run #8: crashed: WARNING in firmware_fallback_sysfs run #9: boot failed: can't ssh into the instance # 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: 722a4d7fb0ca1e49391efb6820636ec1bb8992aa181a135e8f4a75a302112574 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: 0327334466486baa3881e0293e683eb663ddc154a89b5bd1e3211acee9e2be03 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: e2dbb3b44e6fea429c8bcc68c39341b965bc8941d4d77203748b6426e126988b all runs: crashed: WARNING in firmware_fallback_sysfs # 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: dcc11bd813b2c8b9e26ab4a8cda96f7bf66b45adffa97a3a7958374724d0ce36 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: 3be0000bcbe1dc4ee63061c3c35074a4ad2c0a4949a8a6ded9b18b191de85230 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: 55ba3a717a9a2b75d3d81fc670d038f3e57d9d696c15858c1694ffefc4e78b37 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: 959081116e5cf33a4276df38e3d638f77f5e29358e3d5b6a87e220c7548f1b72 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: 12fea741023d7e46e04ea120a966b81e0218411597d1c6e9748ff66e71ed8165 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: d9080abb0d0b0554b48bb600f027859dcefebbb7edfae20452faa43efe665a11 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: 0c1f481c9dd4d0349d97bdd0562e6cab7afdd5a83ee6af10a9d8283a7542314e 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: c940b3c360b9b6b86e9f4e4a41ba1ae0a9d607cb65c7e5c3b345817b849a7c0e 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: 0536c24d89ef67ba7aa2d3f1dce5754aa9c4bf9b56d2e8d54129a60263940983 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: 6e74e3491c64e18ba31a1b8087483f867ca9cb669e7560c51b83b2d7e8c4bac6 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: 8aaf41a78c08f28e57efd99f0cd00d3aecee3558e68b79b541a20aa68e2f3486 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: 294500822f50825a460721d23a27228fd853343425d839e41a23103599a7cff2 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: b47be96f7df02ce908136af5bc882c0399745d56a4e4ca79633a491c347ac04a 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: f23bae925e6f802c894039d0ab357888a2c73bec521edb2c40b5a7b9bf0d460c 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: f64742d63db6f754fd1a08c0ee49ca4f018d978f92f67db84700f5c5fe65bf7b 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: 6c0a5b0d7975b85abccb240948085448a4ac2b371fe873569bf659750224af8e 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 revisions tested: 30, total time: 8h14m40.560234467s (build: 3h17m24.801371718s, test: 4h52m57.066644327s) error: bisection is taking too long (>8h0m0s), aborting