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X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: b7JP/X9YPyuu6PJPTZR8jvey4pPFMmo0RsbH0nk4k6u+u85+YcYnZTxMurVJvHGLdVXJQtv8cL3lcEBdqetZrw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR11MB6831 X-OriginatorOrg: intel.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230810_010113_168251_C2E80243 X-CRM114-Status: GOOD ( 11.87 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Hello, kernel test robot noticed "WARNING:at_drivers/block/null_blk/main.c:#null_map_queues" on: commit: 8ec7debf0b62ddf5f62e18b886925462215ab98b ("[PATCH V3 14/14] blk-mq: add helpers for treating kdump kernel") url: https://github.com/intel-lab-lkp/linux/commits/Ming-Lei/blk-mq-add-blk_mq_max_nr_hw_queues/20230809-003555 base: https://git.kernel.org/cgit/linux/kernel/git/mkp/scsi.git for-next patch link: https://lore.kernel.org/all/20230808104239.146085-15-ming.lei@redhat.com/ patch subject: [PATCH V3 14/14] blk-mq: add helpers for treating kdump kernel in testcase: boot compiler: gcc-12 test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G (please refer to attached dmesg/kmsg for entire log/backtrace) +-----------------------------------------------------------+------------+------------+ | | 27da637b41 | 8ec7debf0b | +-----------------------------------------------------------+------------+------------+ | boot_successes | 12 | 0 | | boot_failures | 0 | 12 | | WARNING:at_drivers/block/null_blk/main.c:#null_map_queues | 0 | 12 | | EIP:null_map_queues | 0 | 12 | | BUG:kernel_NULL_pointer_dereference,address | 0 | 12 | | Oops:#[##] | 0 | 12 | | EIP:group_cpus_evenly | 0 | 12 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 12 | +-----------------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202308101503.67a2d533-oliver.sang@intel.com [ 7.742766][ T1] null_blk: tag set has unexpected nr_hw_queues: 1 [ 7.744704][ T1] ------------[ cut here ]------------ [ 7.745825][ T1] WARNING: CPU: 0 PID: 1 at drivers/block/null_blk/main.c:1615 null_map_queues+0x56/0xdb [ 7.748029][ T1] Modules linked in: [ 7.748923][ T1] CPU: 0 PID: 1 Comm: swapper Tainted: G T 6.5.0-rc1-00100-g8ec7debf0b62 #10 05d847e43b9b6f584ad59352c89de6920a7d94da [ 7.751662][ T1] EIP: null_map_queues+0x56/0xdb [ 7.753366][ T1] Code: b0 b4 01 00 00 8d 0c 37 39 ca 74 29 8b b8 b0 01 00 00 8b b0 b8 01 00 00 8d 04 37 39 c2 74 16 52 68 6d 34 9b 42 e8 f8 89 84 ff <0f> 0b 31 f6 5a bf 01 00 00 00 59 8d 43 04 31 c9 31 d2 89 45 f0 3b [ 7.757272][ T1] EAX: 00000030 EBX: 46131e1c ECX: 00000000 EDX: 00000000 [ 7.758794][ T1] ESI: 00000001 EDI: 00000001 EBP: 40343e88 ESP: 40343e68 [ 7.760257][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010246 [ 7.761810][ T1] CR0: 80050033 CR2: ffd99000 CR3: 0343e000 CR4: 000406d0 [ 7.763254][ T1] Call Trace: [ 7.763953][ T1] ? show_regs+0x60/0x70 [ 7.764872][ T1] ? null_map_queues+0x56/0xdb [ 7.765908][ T1] ? __warn+0x8c/0x10a [ 7.766754][ T1] ? report_bug+0xdd/0x13e [ 7.767719][ T1] ? null_map_queues+0x56/0xdb [ 7.768721][ T1] ? exc_overflow+0x41/0x41 [ 7.769668][ T1] ? handle_bug+0x2b/0x53 [ 7.770532][ T1] ? exc_invalid_op+0x24/0x6a [ 7.771501][ T1] ? handle_exception+0x11d/0x11d [ 7.772572][ T1] ? lockdep_next_lockchain+0x18/0x2b [ 7.773697][ T1] ? exc_overflow+0x41/0x41 [ 7.774604][ T1] ? null_map_queues+0x56/0xdb [ 7.775593][ T1] ? exc_overflow+0x41/0x41 [ 7.776561][ T1] ? null_map_queues+0x56/0xdb [ 7.777534][ T1] ? kmalloc_array_node+0x19/0x28 [ 7.778828][ T1] ? blk_mq_update_queue_map+0x57/0x7e [ 7.779975][ T1] ? blk_mq_alloc_tag_set+0x1eb/0x353 [ 7.781115][ T1] ? null_init_tag_set+0xd7/0xe6 [ 7.782155][ T1] ? null_add_dev+0x1d9/0x5ef [ 7.783128][ T1] ? null_alloc_dev+0x7a/0x1c2 [ 7.784144][ T1] ? null_init+0x26d/0x36b [ 7.785126][ T1] ? do_one_initcall+0x77/0x1b9 [ 7.786097][ T1] ? virtio_blk_init+0xbf/0xbf [ 7.787076][ T1] ? do_initcalls+0x176/0x1ba [ 7.788080][ T1] ? kernel_init_freeable+0xe9/0x13c [ 7.792635][ T1] ? rest_init+0x11d/0x11d [ 7.793557][ T1] ? kernel_init+0x12/0xf7 [ 7.794469][ T1] ? ret_from_fork+0x1c/0x30 [ 7.795465][ T1] irq event stamp: 321017 [ 7.796352][ T1] hardirqs last enabled at (321027): [<41095389>] __up_console_sem+0x59/0x71 [ 7.798190][ T1] hardirqs last disabled at (321036): [<41095370>] __up_console_sem+0x40/0x71 [ 7.800028][ T1] softirqs last enabled at (320984): [<41f25ca9>] __do_softirq+0x279/0x2b7 [ 7.801854][ T1] softirqs last disabled at (320975): [<4101cf25>] call_on_stack+0x40/0x50 [ 7.803562][ T1] ---[ end trace 0000000000000000 ]--- [ 7.804950][ T1] BUG: kernel NULL pointer dereference, address: 00000010 [ 7.805688][ T1] #PF: supervisor write access in kernel mode [ 7.805688][ T1] #PF: error_code(0x0002) - not-present page [ 7.805688][ T1] *pde = 00000000 [ 7.805688][ T1] Oops: 0002 [#1] PREEMPT [ 7.805688][ T1] CPU: 0 PID: 1 Comm: swapper Tainted: G W T 6.5.0-rc1-00100-g8ec7debf0b62 #10 05d847e43b9b6f584ad59352c89de6920a7d94da [ 7.805688][ T1] EIP: group_cpus_evenly+0x24/0x2e [ 7.805688][ T1] Code: c9 e9 a1 91 8d 00 55 89 e5 ba 04 00 00 00 f7 e2 70 0e ba c0 0d 00 00 e8 2e 87 b4 ff 85 c0 75 04 31 c0 eb 08 8b 15 a8 1b 34 43 <89> 10 5d 31 d2 e9 73 91 8d 00 55 89 e5 56 53 8b 1d 84 5f 32 43 85 [ 7.805688][ T1] EAX: 00000010 EBX: 46131e38 ECX: 00000000 EDX: 00000001 [ 7.805688][ T1] ESI: 00000000 EDI: 00000001 EBP: 40343e58 ESP: 40343e58 [ 7.805688][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010202 [ 7.805688][ T1] CR0: 80050033 CR2: 00000010 CR3: 0343e000 CR4: 000406d0 [ 7.805688][ T1] Call Trace: [ 7.805688][ T1] ? show_regs+0x60/0x70 [ 7.805688][ T1] ? __die_body+0x13/0x52 [ 7.805688][ T1] ? __die+0x22/0x2c [ 7.805688][ T1] ? page_fault_oops+0x4c/0x7f [ 7.805688][ T1] ? kernelmode_fixup_or_oops+0x8b/0x9d [ 7.805688][ T1] ? __bad_area_nosemaphore+0x40/0x16c [ 7.805688][ T1] ? bad_area_nosemaphore+0xa/0x17 [ 7.805688][ T1] ? do_user_addr_fault+0xdd/0x396 [ 7.805688][ T1] ? trace_irq_disable+0x3b/0x4e [ 7.805688][ T1] ? exc_page_fault+0xf6/0x120 [ 7.805688][ T1] ? pvclock_clocksource_read_nowd+0x167/0x167 [ 7.805688][ T1] ? handle_exception+0x11d/0x11d [ 7.805688][ T1] ? pvclock_clocksource_read_nowd+0x167/0x167 [ 7.805688][ T1] ? group_cpus_evenly+0x24/0x2e [ 7.805688][ T1] ? pvclock_clocksource_read_nowd+0x167/0x167 [ 7.805688][ T1] ? group_cpus_evenly+0x24/0x2e [ 7.805688][ T1] ? blk_mq_map_queues+0xf/0x46 [ 7.805688][ T1] ? null_map_queues+0xbc/0xdb [ 7.805688][ T1] ? blk_mq_update_queue_map+0x57/0x7e [ 7.805688][ T1] ? blk_mq_alloc_tag_set+0x1eb/0x353 [ 7.805688][ T1] ? null_init_tag_set+0xd7/0xe6 [ 7.805688][ T1] ? null_add_dev+0x1d9/0x5ef [ 7.805688][ T1] ? null_alloc_dev+0x7a/0x1c2 [ 7.805688][ T1] ? null_init+0x26d/0x36b [ 7.805688][ T1] ? do_one_initcall+0x77/0x1b9 [ 7.805688][ T1] ? virtio_blk_init+0xbf/0xbf [ 7.805688][ T1] ? do_initcalls+0x176/0x1ba [ 7.805688][ T1] ? kernel_init_freeable+0xe9/0x13c [ 7.805688][ T1] ? rest_init+0x11d/0x11d [ 7.805688][ T1] ? kernel_init+0x12/0xf7 [ 7.805688][ T1] ? ret_from_fork+0x1c/0x30 [ 7.805688][ T1] Modules linked in: [ 7.805688][ T1] CR2: 0000000000000010 [ 7.805688][ T1] ---[ end trace 0000000000000000 ]--- [ 7.805688][ T1] EIP: group_cpus_evenly+0x24/0x2e [ 7.805688][ T1] Code: c9 e9 a1 91 8d 00 55 89 e5 ba 04 00 00 00 f7 e2 70 0e ba c0 0d 00 00 e8 2e 87 b4 ff 85 c0 75 04 31 c0 eb 08 8b 15 a8 1b 34 43 <89> 10 5d 31 d2 e9 73 91 8d 00 55 89 e5 56 53 8b 1d 84 5f 32 43 85 [ 7.805688][ T1] EAX: 00000010 EBX: 46131e38 ECX: 00000000 EDX: 00000001 [ 7.805688][ T1] ESI: 00000000 EDI: 00000001 EBP: 40343e58 ESP: 40343e58 [ 7.805688][ T1] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010202 [ 7.805688][ T1] CR0: 80050033 CR2: 00000010 CR3: 0343e000 CR4: 000406d0 [ 7.805688][ T1] Kernel panic - not syncing: Fatal exception [ 7.805688][ T1] Kernel Offset: disabled The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20230810/202308101503.67a2d533-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki