Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is git://internal_merge_and_test_tree devel-spot-201807250924 commit ecb10d019c813bfc84c0eae1d62f17e15758a316 Merge: f310bed7dcb42 4d6de09d04e3a Author: 0day robot AuthorDate: Wed Jul 25 09:24:57 2018 +0800 Commit: 0day robot CommitDate: Wed Jul 25 09:24:57 2018 +0800 Merge 'luto/vfs/suid' into devel-spot-201807250924 f310bed7dc Merge 'spi/for-4.19' into devel-spot-201807250924 4d6de09d04 fs: Pass struct file into should_remove_suid(), etc ecb10d019c Merge 'luto/vfs/suid' into devel-spot-201807250924 0feba3e7f0 0day head guard for 'devel-spot-201807250924' +------------------------------------------+------------+------------+------------+------------+ | | f310bed7dc | 4d6de09d04 | ecb10d019c | 0feba3e7f0 | +------------------------------------------+------------+------------+------------+------------+ | boot_successes | 197 | 0 | 10 | 8 | | boot_failures | 0 | 264 | 60 | 11 | | BUG:unable_to_handle_kernel | 0 | 264 | 42 | 6 | | Oops:#[##] | 0 | 264 | 51 | 8 | | RIP:__pci_epf_register_driver | 0 | 264 | | | | Kernel_panic-not_syncing:Fatal_exception | 0 | 264 | 60 | 11 | | RIP:file_needs_remove_privs | 0 | 0 | 48 | 7 | | RIP:cap_inode_need_killpriv | 0 | 0 | 8 | 1 | | RIP:xattr_resolve_name | 0 | 0 | 4 | 3 | | general_protection_fault:#[##] | 0 | 0 | 8 | 3 | | Mem-Info | 0 | 0 | 2 | | +------------------------------------------+------------+------------+------------+------------+ [ 49.120086] random: get_random_bytes called from __prandom_timer+0x23/0x80 with crng_init=1 [ 52.170916] trinity-c2 (673) used greatest stack depth: 13080 bytes left [ 52.172923] random: get_random_u64 called from copy_process+0x250/0x183a with crng_init=1 [ 52.179743] random: get_random_u32 called from rt_genid_init+0x1d/0x27 with crng_init=1 [ 52.181534] random: get_random_u32 called from bucket_table_alloc+0x110/0x13a with crng_init=1 [ 53.191093] BUG: unable to handle kernel paging request at 000000000000817c [ 53.192257] PGD 8000000017930067 P4D 8000000017930067 PUD 178da067 PMD 178e5067 PTE 0 [ 53.194709] Oops: 0000 [#1] DEBUG_PAGEALLOC PTI [ 53.195455] CPU: 0 PID: 720 Comm: trinity-c3 Not tainted 4.18.0-rc6-01520-gecb10d0 #1 [ 53.197530] RIP: 0010:cap_inode_need_killpriv+0x0/0x1e [ 53.200770] Code: 75 06 31 c0 85 d2 74 07 0f 0b b8 ea ff ff ff 48 8b 5c 24 08 65 48 33 1c 25 28 00 00 00 74 05 e8 1a cb e6 ff 48 83 c4 10 5b c3 <48> 8b 77 58 45 31 c0 31 c9 48 c7 c2 fa a9 bf 81 e8 80 3d f9 ff 85 [ 53.207971] RSP: 0018:ffffc900000f3dd0 EFLAGS: 00010286 [ 53.209540] RAX: 0000000000000000 RBX: ffffffff81c56ad8 RCX: 0000000000000000 [ 53.211494] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000008124 [ 53.215081] RBP: 0000000000008124 R08: 0000000000000000 R09: 0000000000000000 [ 53.217351] R10: ffffc900000f3ea8 R11: 0000000000000067 R12: 0000000000000000 [ 53.219612] R13: ffff88001c5ba890 R14: ffff88001c5ba9f8 R15: 0000000000000000 [ 53.223566] FS: 000000000104a880(0000) GS:ffffffff81e41000(0000) knlGS:0000000000000000 [ 53.225841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.228052] CR2: 000000000000817c CR3: 000000001792e004 CR4: 00000000000606b0 [ 53.231799] Call Trace: [ 53.232246] security_inode_need_killpriv+0x23/0x2a [ 53.233885] file_needs_remove_privs+0x21/0x36 [ 53.235466] do_truncate+0x4b/0xa9 [ 53.236768] ? ns_capable_common+0x33/0x68 [ 53.239520] ? generic_permission+0xa9/0xb4 [ 53.240799] ? inode_permission+0x9c/0x12d [ 53.241884] vfs_truncate+0x133/0x155 [ 53.243126] do_sys_truncate+0x58/0x9a [ 53.244785] do_syscall_64+0x15c/0x2be [ 53.247456] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.248805] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 53.250076] RIP: 0033:0x457389 [ 53.251134] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 84 00 00 c3 66 2e 0f 1f 84 00 00 00 00 [ 53.258843] RSP: 002b:00007ffdfa366e98 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 53.262111] RAX: ffffffffffffffda RBX: 000000000000004c RCX: 0000000000457389 [ 53.264281] RDX: 005af353094b068a RSI: 0000000000000000 RDI: 0000000001270610 [ 53.266918] RBP: 00007ffdfa366f40 R08: 0000000000000009 R09: 0000000000000093 [ 53.271133] R10: 0000000010000000 R11: 0000000000000246 R12: 0000000000000002 [ 53.272967] R13: 00007fc122a21058 R14: 000000000104a830 R15: 00007fc122a21000 [ 53.275157] Modules linked in: [ 53.276296] CR2: 000000000000817c [ 53.279384] ---[ end trace 0ef4448d8f60a8e9 ]--- [ 53.280760] RIP: 0010:cap_inode_need_killpriv+0x0/0x1e # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 0feba3e7f0bfda7b9224d6076d986c6ff7d28b7f d72e90f33aa4709ebecc5005562f52335e106a60 -- git bisect bad aa40d4f1c0bbb812aad9c70081484a62221f42bb # 03:53 B 3 1 3 3 Merge 'asoc/for-4.18' into devel-spot-201807250924 git bisect good f310bed7dcb4269728fc7d198c09d4fdd261ab05 # 04:22 G 28 0 0 0 Merge 'spi/for-4.19' into devel-spot-201807250924 git bisect bad 78e4347d36b56a1c0d0b74dfe24da1331a57d78f # 04:31 B 1 1 1 1 Merge 'jkirsher-net-queue/dev-queue' into devel-spot-201807250924 git bisect bad 995f4dd83609c3cb085cdfe9819c47942bb17372 # 04:48 B 8 1 8 8 Merge 'tip/perf/urgent' into devel-spot-201807250924 git bisect bad 2c3a64004ee5fff45714eccbc02e9acb21fc768e # 05:03 B 8 2 8 8 Merge 'linux-review/Anton-Vasilyev/gpio-ml-ioh-Fix-buffer-underwrite-on-probe-error-path/20180724-230842' into devel-spot-201807250924 git bisect bad ecb10d019c813bfc84c0eae1d62f17e15758a316 # 05:41 B 14 1 14 14 Merge 'luto/vfs/suid' into devel-spot-201807250924 git bisect good 4d6de09d04e3a99055dc6a568e614ec4e6d3deef # 06:41 G 65 0 65 65 fs: Pass struct file into should_remove_suid(), etc # first bad commit: [ecb10d019c813bfc84c0eae1d62f17e15758a316] Merge 'luto/vfs/suid' into devel-spot-201807250924 git bisect good f310bed7dcb4269728fc7d198c09d4fdd261ab05 # 07:04 G 189 0 1 1 Merge 'spi/for-4.19' into devel-spot-201807250924 git bisect good 4d6de09d04e3a99055dc6a568e614ec4e6d3deef # 07:21 G 186 0 186 254 fs: Pass struct file into should_remove_suid(), etc # extra tests with debug options git bisect bad ecb10d019c813bfc84c0eae1d62f17e15758a316 # 07:40 B 5 1 5 5 Merge 'luto/vfs/suid' into devel-spot-201807250924 # extra tests on HEAD of linux-devel/devel-spot-201807250924 git bisect bad 0feba3e7f0bfda7b9224d6076d986c6ff7d28b7f # 07:40 B 2 4 0 7 0day head guard for 'devel-spot-201807250924' # extra tests on tree/branch linux-devel/devel-spot-201807250924 git bisect bad 0feba3e7f0bfda7b9224d6076d986c6ff7d28b7f # 07:41 B 2 4 0 7 0day head guard for 'devel-spot-201807250924' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation