Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit 0b10f83694ee9e092914a0e7a7d5561de190047e Merge: c2e99dd f91f694 Author: Ingo Molnar <mingo(a)kernel.org&gt; AuthorDate: Thu Feb 16 17:25:24 2017 +0100 Commit: Ingo Molnar <mingo(a)kernel.org&gt; CommitDate: Thu Feb 16 17:25:24 2017 +0100 Merge branch 'irq/core' 0b10f83694 Merge branch 'irq/core' +------------------------------------------+---+ | | | +------------------------------------------+---+ | boot_successes | 0 | | boot_failures | 6 | | BUG:KASAN:null-ptr-deref_on_address | 6 | | BUG:unable_to_handle_kernel | 6 | | Oops | 6 | | Kernel_panic-not_syncing:Fatal_exception | 6 | +------------------------------------------+---+ [ 13.744423] hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO0 [ 13.746436] hdc: MWDMA2 mode selected [ 13.746436] hdc: MWDMA2 mode selected [ 13.747902] ================================================================== [ 13.747902] ================================================================== [ 13.749993] BUG: KASAN: null-ptr-deref on address 0000000000000078 [ 13.749993] BUG: KASAN: null-ptr-deref on address 0000000000000078 [ 13.750899] Read of size 8 by task swapper/0/1 [ 13.750899] Read of size 8 by task swapper/0/1 [ 13.750899] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc8-00094-g0b10f83 #1 [ 13.750899] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc8-00094-g0b10f83 #1 [ 13.750899] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 13.750899] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 13.750899] Call Trace: [ 13.750899] Call Trace: [ 13.750899] dump_stack+0x63/0x81 [ 13.750899] dump_stack+0x63/0x81 [ 13.750899] kasan_report_error+0x3d9/0x4e4 [ 13.750899] kasan_report_error+0x3d9/0x4e4 [ 13.750899] kasan_report+0x34/0x36 [ 13.750899] kasan_report+0x34/0x36 [ 13.750899] ? handle_edge_irq+0x23/0x301 [ 13.750899] ? handle_edge_irq+0x23/0x301 [ 13.750899] ? apic_ack_edge+0x4d/0x9b [ 13.750899] ? apic_ack_edge+0x4d/0x9b [ 13.750899] __asan_load8+0x5e/0x6a [ 13.750899] __asan_load8+0x5e/0x6a [ 13.750899] apic_ack_edge+0x4d/0x9b [ 13.750899] apic_ack_edge+0x4d/0x9b [ 13.750899] irq_chip_ack_parent+0x36/0x3b [ 13.750899] irq_chip_ack_parent+0x36/0x3b [ 13.750899] handle_edge_irq+0x198/0x301 [ 13.750899] handle_edge_irq+0x198/0x301 [ 13.750899] request_threaded_irq+0x262/0x2d3 [ 13.750899] request_threaded_irq+0x262/0x2d3 [ 13.750899] ? ide_requeue_and_plug+0x67/0x67 [ 13.750899] ? ide_requeue_and_plug+0x67/0x67 [ 13.750899] ide_host_register+0x7c3/0xb51 [ 13.750899] ide_host_register+0x7c3/0xb51 [ 13.750899] ide_pci_init_two+0x890/0xd6b [ 13.750899] ide_pci_init_two+0x890/0xd6b [ 13.750899] ? do_raw_spin_unlock+0x8a/0xf1 [ 13.750899] ? do_raw_spin_unlock+0x8a/0xf1 [ 13.750899] ? unbind_store+0x185/0x185 [ 13.750899] ? unbind_store+0x185/0x185 [ 13.750899] ? _raw_spin_unlock+0x22/0x2c [ 13.750899] ? _raw_spin_unlock+0x22/0x2c [ 13.750899] ? klist_put+0x6a/0xa4 [ 13.750899] ? klist_put+0x6a/0xa4 [ 13.750899] ? pci_do_find_bus+0x79/0x79 [ 13.750899] ? pci_do_find_bus+0x79/0x79 [ 13.750899] ? klist_iter_exit+0x2e/0x3b [ 13.750899] ? klist_iter_exit+0x2e/0x3b [ 13.750899] ? bus_find_device+0xaa/0xd8 [ 13.750899] ? bus_find_device+0xaa/0xd8 [ 13.750899] ? put_device+0x12/0x14 [ 13.750899] ? put_device+0x12/0x14 [ 13.750899] ? pci_dev_put+0x15/0x17 [ 13.750899] ? pci_dev_put+0x15/0x17 [ 13.750899] ide_pci_init_one+0x11/0x13 [ 13.750899] ide_pci_init_one+0x11/0x13 [ 13.750899] piix_init_one+0x34/0x39 [ 13.750899] piix_init_one+0x34/0x39 [ 13.750899] ide_scan_pcibus+0x126/0x351 [ 13.750899] ide_scan_pcibus+0x126/0x351 [ 13.750899] ? via_ide_init+0x4b/0x4b [ 13.750899] ? via_ide_init+0x4b/0x4b [ 13.750899] do_one_initcall+0x3f/0x1b5 [ 13.750899] do_one_initcall+0x3f/0x1b5 [ 13.750899] kernel_init_freeable+0x249/0x36a [ 13.750899] kernel_init_freeable+0x249/0x36a [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] kernel_init+0xe/0x11b [ 13.750899] kernel_init+0xe/0x11b [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ret_from_fork+0x2c/0x40 [ 13.750899] ret_from_fork+0x2c/0x40 [ 13.750899] ================================================================== [ 13.750899] ================================================================== [ 13.750899] Disabling lock debugging due to kernel taint [ 13.750899] Disabling lock debugging due to kernel taint [ 13.750899] BUG: unable to handle kernel NULL pointer dereference at 0000000000000078 [ 13.750899] BUG: unable to handle kernel NULL pointer dereference at 0000000000000078 [ 13.750899] IP: apic_ack_edge+0x4d/0x9b [ 13.750899] IP: apic_ack_edge+0x4d/0x9b [ 13.750899] PGD 0 [ 13.750899] PGD 0 [ 13.750899] [ 13.750899] [ 13.750899] Oops: 0000 [#1] SMP KASAN [ 13.750899] Oops: 0000 [#1] SMP KASAN [ 13.750899] Modules linked in: [ 13.750899] Modules linked in: [ 13.750899] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B 4.10.0-rc8-00094-g0b10f83 #1 [ 13.750899] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B 4.10.0-rc8-00094-g0b10f83 #1 [ 13.750899] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 13.750899] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 13.750899] task: ffff8800001ea040 task.stack: ffff8800001f0000 [ 13.750899] task: ffff8800001ea040 task.stack: ffff8800001f0000 [ 13.750899] RIP: 0010:apic_ack_edge+0x4d/0x9b [ 13.750899] RIP: 0010:apic_ack_edge+0x4d/0x9b [ 13.750899] RSP: 0000:ffff8800001f79c0 EFLAGS: 00010092 [ 13.750899] RSP: 0000:ffff8800001f79c0 EFLAGS: 00010092 [ 13.750899] RAX: ffff8800001ea040 RBX: 0000000000000000 RCX: ffffffffa54f1b43 [ 13.750899] RAX: ffff8800001ea040 RBX: 0000000000000000 RCX: ffffffffa54f1b43 [ 13.750899] RDX: 1ffffffff4c883ec RSI: 0000000000000001 RDI: 0000000000000096 [ 13.750899] RDX: 1ffffffff4c883ec RSI: 0000000000000001 RDI: 0000000000000096 [ 13.750899] RBP: ffff8800001f79d8 R08: 0000000000000001 R09: 0000000000000000 [ 13.750899] RBP: ffff8800001f79d8 R08: 0000000000000001 R09: 0000000000000000 [ 13.750899] R10: 000000000000000a R11: 0000000000000000 R12: ffff8800001d1780 [ 13.750899] R10: 000000000000000a R11: 0000000000000000 R12: ffff8800001d1780 [ 13.750899] R13: ffff880000084180 R14: ffff88000008e7b0 R15: ffff88000008e780 [ 13.750899] R13: ffff880000084180 R14: ffff88000008e7b0 R15: ffff88000008e780 [ 13.750899] FS: 0000000000000000(0000) GS:ffff880018e00000(0000) knlGS:0000000000000000 [ 13.750899] FS: 0000000000000000(0000) GS:ffff880018e00000(0000) knlGS:0000000000000000 [ 13.750899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.750899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.750899] CR2: 0000000000000078 CR3: 000000000b413000 CR4: 00000000000006b0 [ 13.750899] CR2: 0000000000000078 CR3: 000000000b413000 CR4: 00000000000006b0 [ 13.750899] Call Trace: [ 13.750899] Call Trace: [ 13.750899] irq_chip_ack_parent+0x36/0x3b [ 13.750899] irq_chip_ack_parent+0x36/0x3b [ 13.750899] handle_edge_irq+0x198/0x301 [ 13.750899] handle_edge_irq+0x198/0x301 [ 13.750899] request_threaded_irq+0x262/0x2d3 [ 13.750899] request_threaded_irq+0x262/0x2d3 [ 13.750899] ? ide_requeue_and_plug+0x67/0x67 [ 13.750899] ? ide_requeue_and_plug+0x67/0x67 [ 13.750899] ide_host_register+0x7c3/0xb51 [ 13.750899] ide_host_register+0x7c3/0xb51 [ 13.750899] ide_pci_init_two+0x890/0xd6b [ 13.750899] ide_pci_init_two+0x890/0xd6b [ 13.750899] ? do_raw_spin_unlock+0x8a/0xf1 [ 13.750899] ? do_raw_spin_unlock+0x8a/0xf1 [ 13.750899] ? unbind_store+0x185/0x185 [ 13.750899] ? unbind_store+0x185/0x185 [ 13.750899] ? _raw_spin_unlock+0x22/0x2c [ 13.750899] ? _raw_spin_unlock+0x22/0x2c [ 13.750899] ? klist_put+0x6a/0xa4 [ 13.750899] ? klist_put+0x6a/0xa4 [ 13.750899] ? pci_do_find_bus+0x79/0x79 [ 13.750899] ? pci_do_find_bus+0x79/0x79 [ 13.750899] ? klist_iter_exit+0x2e/0x3b [ 13.750899] ? klist_iter_exit+0x2e/0x3b [ 13.750899] ? bus_find_device+0xaa/0xd8 [ 13.750899] ? bus_find_device+0xaa/0xd8 [ 13.750899] ? put_device+0x12/0x14 [ 13.750899] ? put_device+0x12/0x14 [ 13.750899] ? pci_dev_put+0x15/0x17 [ 13.750899] ? pci_dev_put+0x15/0x17 [ 13.750899] ide_pci_init_one+0x11/0x13 [ 13.750899] ide_pci_init_one+0x11/0x13 [ 13.750899] piix_init_one+0x34/0x39 [ 13.750899] piix_init_one+0x34/0x39 [ 13.750899] ide_scan_pcibus+0x126/0x351 [ 13.750899] ide_scan_pcibus+0x126/0x351 [ 13.750899] ? via_ide_init+0x4b/0x4b [ 13.750899] ? via_ide_init+0x4b/0x4b [ 13.750899] do_one_initcall+0x3f/0x1b5 [ 13.750899] do_one_initcall+0x3f/0x1b5 [ 13.750899] kernel_init_freeable+0x249/0x36a [ 13.750899] kernel_init_freeable+0x249/0x36a [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] kernel_init+0xe/0x11b [ 13.750899] kernel_init+0xe/0x11b [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ? rest_init+0xcc/0xcc [ 13.750899] ret_from_fork+0x2c/0x40 [ 13.750899] ret_from_fork+0x2c/0x40 [ 13.750899] Code: 14 d5 1b 00 48 8b 43 28 48 85 c0 75 eb 48 8d 7b 30 e8 02 d5 1b 00 4c 8b 6b 30 65 48 8b 1d fe 58 be 5a 48 8d 7b 78 e8 ed d4 1b 00 <48> 8b 73 78 f7 d6 4c 89 ef e8 19 f6 ff ff 4c 89 e7 e8 2f e8 0d [ 13.750899] Code: 14 d5 1b 00 48 8b 43 28 48 85 c0 75 eb 48 8d 7b 30 e8 02 d5 1b 00 4c 8b 6b 30 65 48 8b 1d fe 58 be 5a 48 8d 7b 78 e8 ed d4 1b 00 <48> 8b 73 78 f7 d6 4c 89 ef e8 19 f6 ff ff 4c 89 e7 e8 2f e8 0d [ 13.750899] RIP: apic_ack_edge+0x4d/0x9b RSP: ffff8800001f79c0 [ 13.750899] RIP: apic_ack_edge+0x4d/0x9b RSP: ffff8800001f79c0 [ 13.750899] CR2: 0000000000000078 [ 13.750899] CR2: 0000000000000078 [ 13.750899] ---[ end trace 0925be35fc3fc8de ]--- [ 13.750899] ---[ end trace 0925be35fc3fc8de ]--- git bisect start cd92b5aaf7d7038fc317dc62fe5b23a9ae434f60 7089db84e356562f8ba737c29e472cc42d530dbc -- git bisect bad 1c5b4e718fcf45948c33c9c991b52a0ba62f28ba # 08:09 0- 1 Merge 'linux-review/Christophe-JAILLET/soc-ti-knav_dma-Fix-some-error-handling/20170218-185435' into devel-spot-201702190749 git bisect good 2340485a0584663b1e7bc9cccac2ee994ab69c33 # 08:24 21+ 0 Merge 'f2fs/dev-test' into devel-spot-201702190749 git bisect bad 44a5464887d5e9edd1e6cc70b28cb0f74a173417 # 08:39 0- 1 Merge 'platform-drivers-x86/for-next' into devel-spot-201702190749 git bisect bad 8f5abb49af359c0ce4aad212fbb036c80615c24a # 09:02 0- 5 Merge 'linux-review/Micha-Zegan/mmc-meson-gx-remove-mmc-host-on-device-removal/20170219-011100' into devel-spot-201702190749 git bisect good ee13ff3d943331b9fc06e46e7dc1dbedd0e86278 # 09:17 20+ 0 Merge 'linux-review/Xin-Long/sctp-support-MSG_MORE-flag-when-sending-msg/20170219-020435' into devel-spot-201702190749 git bisect bad 738798cbd486cd99000a4aceeac9b3857ef2a697 # 09:30 0- 4 Merge 'tip/master' into devel-spot-201702190749 git bisect good c2e99dda82b5945907ce4aa9d1fcaf455001538b # 09:52 20+ 0 Merge branch 'efi/core' git bisect good 0a13cd1a05e7a549259d4f803d2ec2efda07ed7c # 10:09 22+ 23 locking/atomic, kref: Implement kref_put_lock() git bisect good 2f44e29cef006a4b0a4ecf7d4c5aac7d0fbb505c # 23:12 20+ 0 genirq/msi: Add stubs for get_cached_msi_msg/pci_write_msi_msg git bisect good 10383aea2f445bce9b2a2b308def08134b438c8e # 23:29 20+ 0 kref: Implement 'struct kref' using refcount_t git bisect good bc88c10d7e6900916f5e1ba3829d66a9de92b633 # 15:11 22+ 0 locking/spinlock/debug: Remove spinlock lockup detection code git bisect bad 0b10f83694ee9e092914a0e7a7d5561de190047e # 15:11 0- 6 Merge branch 'irq/core' git bisect good f91f694540f3f8ed25da57814fe0c673afd36e7e # 15:22 22+ 0 genirq: Reenable shared irq debugging in request_*_irq() # first bad commit: [0b10f83694ee9e092914a0e7a7d5561de190047e] Merge branch 'irq/core' git bisect good c2e99dda82b5945907ce4aa9d1fcaf455001538b # 15:27 66+ 2 Merge branch 'efi/core' git bisect good f91f694540f3f8ed25da57814fe0c673afd36e7e # 15:33 62+ 0 genirq: Reenable shared irq debugging in request_*_irq() # extra tests with CONFIG_DEBUG_INFO_REDUCED git bisect bad 0b10f83694ee9e092914a0e7a7d5561de190047e # 18:14 0- 70 Merge branch 'irq/core' # extra tests on HEAD of linux-devel/devel-spot-201702190749 git bisect bad cd92b5aaf7d7038fc317dc62fe5b23a9ae434f60 # 18:15 0- 25 0day head guard for 'devel-spot-201702190749' # extra tests on tree/branch linux-next/master --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation