bisecting cause commit starting from a9e26cb5f2615cd638f911ea96d4fff5b4d93690 building syzkaller on c090b4da255257841173fb4eb18c19d69b293180 testing commit a9e26cb5f2615cd638f911ea96d4fff5b4d93690 with gcc (GCC) 8.1.0 kernel signature: 92a38665aec38e5310ae8d24322b25579e2c7c12ea0e391081ba0b39f6db0dfa all runs: crashed: UBSAN: shift-out-of-bounds in snto32 testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 8.1.0 kernel signature: 0a239a63f936e094afcdc973a4a1640a49766a3338df273434ed919c9d53b108 all runs: crashed: UBSAN: shift-out-of-bounds in snto32 testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 43a299fc537e8c714d4f291e0dd750ca62379f64f4e403b6386c91532496a188 all runs: crashed: UBSAN: shift-out-of-bounds in snto32 testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: 9d59fff760a571f9aef85675458244dad39af3409ec46744bf8b4640c1f90dc9 all runs: crashed: UBSAN: shift-out-of-bounds in snto32 testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 5a651a957f7b2d0a6c6a5e0d01901f2c562ec4a7117c85fb3ead69e0c7d7e9d0 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: 975a33b471694a119023781706ccc2e0bdb5893f35d2502a72c2fd31208f1574 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: e85c9dfeb9c43f00756de82014a5dc8b5e89d20abf0339eaecbbee841e414812 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: d4865d86f6a5f4bbad88de2186f956a796755f14c65daefa34a282b2ae02edb3 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: a532e1a0f1fa1d6e5da27864170dc53c199a5244d69c0dc8cfdde631ddedfab5 all runs: crashed: UBSAN: shift-out-of-bounds in snto32 # 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: 62cd9e70bdff9b1be81354750f20b0306a050e9034d1727fe322f724dd89b8da 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: d1c06d6aa0bece417f0528d0d88c7a4bac0b9ee78c9972d802ff192258dae4d0 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: 5e3606fb63e65887ead769288b117012fc0eb568e1010e2ab0d7ca69f384f757 all runs: crashed: UBSAN: shift-out-of-bounds in snto32 # 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: 390c4e4461a86d11ea7db8948a531d223c0e791b08be138ee26218cd1a4259ff 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: 5b5b0075f2e57c8c32657220eb799cf396b930cfe3e2be8999b7f5e55dba30cc 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: 5cfc0a90bbca815fd5b7c0f1612adf507f6316459d7313123439bade32464e5d 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: f4528b3a5b2567f073869c1b62a78a2d5c3f049760ae742e787a0fcce6a2a95c 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: 425a483bcbdee59e4fe519057790ec45cd8517a48d70faf77fa25b86e4cdb03d 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: OK run #9: boot failed: can't ssh into the instance # 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: de5edbe9cfbbac5f68cf009fbda7dc4e6b34426d769ba757f42218c2adc235d6 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: a10bb3959dcdf8267700f1f7f4075ffd8ed608c59e70e27bc16e98fc7d0ef4d0 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: 6a4e730cb64b3cfb2178a8446a2df28ca1ccca1b259248ab8134ea293e104058 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: 2fd44f4879d5cb5179ca64477129ed19669e647166eb4eae5dda5094ae25b51f 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: 5c4a1763f4db2a5c180074c5235230860624d28bbdc9497e8c8d8fb151c68d2d 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: 8e370954018939ae3c5a28e940895b5542ed2a9ef3a3259e1961241bbcc89505 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: fea5f55b3e20748d9f6c6fe3f5511865264d5c6bffe1bc33d3ede201d9998ba4 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: b3dbea0b191d152da119d1f5e4c01ee3b31344ba5de4e00811cdbf94bfaf9039 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: a5225a7b81a01e2ea8db192effe4635ca7c4229cd94a4596325e6d6409b4cad8 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: 52cc7acaa1782eaaa123be190b938bce20dc91d59c197caef1965df1d993b3e7 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: OK run #9: boot failed: can't ssh into the instance # 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: b8808d622cfb4a69bf2181761a5a9d72abfbda820a668b74b4990bfe0d237f96 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) 8.1.0 kernel signature: 70fe9deeb4d9cd05c7e2afaf17a795be2bcd08beebc3bb09c3064757a8d4a876 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) 8.1.0 kernel signature: 4a5ec969b681077b3073bf30ac6c8252c4a3be22557b90c53e6e86caf0f4ec50 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) 8.1.0 kernel signature: abfd51bf5d1c831e41e19a7755c10dcf2a36a0e22d35741bf0c0a55dffb825e4 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 testing commit 7289fdb5dcdbc5155b5531529c44105868a762f2 with gcc (GCC) 8.1.0 kernel signature: 3fc620ce35266b37c5b2b3ea6f4d4726a101021a4c3a120cdd2baf1824778bc9 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 7289fdb5dcdbc5155b5531529c44105868a762f2 Bisecting: 5081 revisions left to test after this (roughly 12 steps) [cf7e44daa727bf4868a4b3be380829db52a2762d] staging: qlge: add braces on all arms of if-else testing commit cf7e44daa727bf4868a4b3be380829db52a2762d with gcc (GCC) 8.1.0 kernel signature: 76f4d0acc1ebf753e414d0758c9bba95477f5429b4cb6c09de21fb684a779cb9 all runs: OK # git bisect good cf7e44daa727bf4868a4b3be380829db52a2762d Bisecting: 5081 revisions left to test after this (roughly 12 steps) [aa0d1564b10f9165f913229d4428bdeea4e0d945] fs/binfmt_elf.c: don't free interpreter's ELF pheaders on common path revisions tested: 33, total time: 8h3m42.119862179s (build: 3h6m10.757739442s, test: 4h53m43.744200753s) error: bisection is taking too long (>8h0m0s), aborting