Hello, I've noticed that sometimes kernel OOPS issues arises at arm builders in OBS when kernel-obs-build-4.12.14 is being used. For instance: https://build.opensuse.org/public/build/Kernel:openSUSE-15.0:Submit/QA_ARM/a... [ 12.680824] Unable to handle kernel paging request at virtual address 0149c000 [ 47s] [ 12.680837] pgd = ecb41540 [ 47s] [ 12.680839] [0149c000] *pgd=6c87f003, *pmd=00000000 [ 47s] [ 12.680846] Internal error: Oops: a06 [#1] PREEMPT SMP ARM [ 47s] [ 12.683741] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat virtio_rng virtio_blk virtio_mmio nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack xfs libcrc32c btrfs xor xor_neon zlib_deflate raid6_pq reiserfs squashfs fuse dm_snapshot dm_bufio dm_mod dax binfmt_misc loop sg [ 47s] [ 12.697396] CPU: 0 PID: 647 Comm: rpm Not tainted 4.12.14-3.gf2b9298-lpae #1 [ 47s] [ 12.698495] Hardware name: Generic DT based system [ 47s] [ 12.699275] task: eef9a040 task.stack: ecf3a000 [ 47s] [ 12.700009] PC is at memcpy+0x50/0x330 [ 47s] [ 12.700624] LR is at clcdfb_of_init_display+0x1e8/0x438 [ 47s] [ 12.701439] pc : [<c0822b30>] lr : [<c08f35bc>] psr: 20000013 [ 47s] [ 12.701439] sp : ecf3bd84 ip : f8ff39af fp : ecf3bdcc [ 47s] [ 12.703204] r10: 0149b7f4 r9 : ffefe80c r8 : c13f8194 [ 47s] [ 12.704034] r7 : ee122648 r6 : 30259fd7 r5 : c84f02c5 r4 : 467869ea [ 47s] [ 12.705034] r3 : 469ad40d r2 : 00000754 r1 : ffefe82c r0 : 0149c000 [ 47s] [ 12.706056] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 47s] [ 12.717204] Control: 30c5383d Table: 6cb41540 DAC: fffffffd [ 47s] [ 12.718069] Process rpm (pid: 647, stack limit = 0xecf3a210) [ 47s] [ 12.718974] Stack: (0xecf3bd84 to 0xecf3c000) [ 47s] [ 12.719690] bd80: 00000001 000007f4 00000000 ffffe000 0149c000 0149c000 c0833968 [ 47s] [ 12.721001] bda0: ec9c54e0 efafefd0 00001000 ecf3bef0 00001000 ecf3bee8 00000edc ffefe000 [ 47s] [ 12.722315] bdc0: ecf3bddc ecf3bdd0 c0833b60 c0833890 ecf3be1c ecf3bde0 c083c4c0 c0833b4c [ 47s] [ 12.723546] bde0: c040182c c04e015c ffefe000 efe7aec0 ffffffff ec50152c c801d480 efe7aec0 [ 47s] [ 12.724806] be00: 00000275 ec501438 ecf3bef0 00001000 ecf3be8c ecf3be20 c05b6620 c083c334 [ 47s] [ 12.726067] be20: ecf3bf00 ec6977c0 014000c0 00080001 ecf3bf10 00000000 00000274 00000edc [ 47s] [ 12.728311] be40: 0000027d c801d4e8 004ef6bf 00000000 00000000 00000000 ffffe000 c06dd070 [ 47s] [ 12.729574] be60: ecf3bed4 00000000 00008000 ecf3bef0 c801d480 ecf3bf78 00000000 ecf3bf08 [ 47s] [ 12.730772] be80: ecf3becc ecf3be90 c05b6d58 c05b640c c10a7654 c801d488 00020000 00000000 [ 47s] [ 12.731991] bea0: 00020000 00000000 c801d480 ecf3bf78 0149a918 ecf3bf78 00000000 00000000 [ 47s] [ 12.733305] bec0: ecf3bedc ecf3bed0 c06dd35c c05b6c34 ecf3bf44 ecf3bee0 c063c458 c06dd324 [ 47s] [ 12.734627] bee0: 00008000 c0686f78 0149a918 00008000 00000000 00000edc 00007124 ecf3bee8 [ 47s] [ 12.735869] bf00: 00000001 ecf3bf10 c801d480 00000000 00274124 00000000 00000000 00000000 [ 47s] [ 12.737598] bf20: 00000000 00000000 ffffe000 00008000 c801d480 0149a918 ecf3bf74 ecf3bf48 [ 47s] [ 12.738717] bf40: c063db2c c063c380 00000000 c065fab4 c801d482 c801d480 00274124 00000000 [ 47s] [ 12.739837] bf60: 0149a918 00008000 ecf3bfa4 ecf3bf78 c063ee80 c063da9c 00274124 00000000 [ 47s] [ 12.740958] bf80: 016d96d8 0149a918 00008000 00000003 c04360e8 ecf3a000 00000000 ecf3bfa8 [ 47s] [ 12.742073] bfa0: c0435f20 c063ee40 016d96d8 0149a918 00000019 0149a918 00008000 00000000 [ 47s] [ 12.743190] bfc0: 016d96d8 0149a918 00008000 00000003 b6caabe4 b6f74010 00008000 000005e8 [ 47s] [ 12.744306] bfe0: b6caa7a0 befc54e8 b6bc3b28 b6c229a4 60000010 00000019 00000000 00000000 [ 47s] [ 12.745441] [<c0822b30>] (memcpy) from [<c0833968>] (__copy_to_user_memcpy+0xe4/0x18c) [ 47s] [ 12.746968] [<c0833968>] (__copy_to_user_memcpy) from [<c0833b60>] (arm_copy_to_user+0x20/0x34) [ 47s] [ 12.748294] [<c0833b60>] (arm_copy_to_user) from [<c083c4c0>] (copy_page_to_iter+0x198/0x414) [ 47s] [ 12.749688] [<c083c4c0>] (copy_page_to_iter) from [<c05b6620>] (do_generic_file_read+0x220/0x828) [ 47s] [ 12.751018] [<c05b6620>] (do_generic_file_read) from [<c05b6d58>] (generic_file_read_iter+0x130/0x184) [ 47s] [ 12.752543] [<c05b6d58>] (generic_file_read_iter) from [<c06dd35c>] (ext4_file_read_iter+0x44/0x58) [ 47s] [ 12.753949] [<c06dd35c>] (ext4_file_read_iter) from [<c063c458>] (__vfs_read+0xe4/0x130) [ 47s] [ 12.755188] [<c063c458>] (__vfs_read) from [<c063db2c>] (vfs_read+0x9c/0x164) [ 47s] [ 12.756812] [<c063db2c>] (vfs_read) from [<c063ee80>] (SyS_read+0x4c/0xa4) [ 47s] [ 12.757771] [<c063ee80>] (SyS_read) from [<c0435f20>] (ret_fast_syscall+0x0/0x34) [ 47s] [ 12.758803] Code: f5d1f05c f5d1f07c e8b151f8 e2522020 (e8a051f8) [ 47s] [ 12.759682] ---[ end trace e4d1e06b8c8b7630 ]--- [ 47s] [ 12.760316] note: rpm[647] exited with preempt_count 2 [ 75s] [ 40.145014] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [khugepaged:29] [ 75s] [ 40.146292] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat virtio_rng virtio_blk virtio_mmio nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack xfs libcrc32c btrfs xor xor_neon zlib_deflate raid6_pq reiserfs squashfs fuse dm_snapshot dm_bufio dm_mod dax binfmt_misc loop sg [ 75s] [ 40.160613] CPU: 1 PID: 29 Comm: khugepaged Tainted: G D 4.12.14-3.gf2b9298-lpae #1 [ 75s] [ 40.161999] Hardware name: Generic DT based system [ 75s] [ 40.162761] task: eee090c0 task.stack: eee24000 [ 75s] [ 40.163527] PC is at _raw_spin_lock+0x58/0x70 [ 75s] [ 40.164235] LR is at khugepaged+0x17c4/0x215c [ 75s] [ 40.165007] pc : [<c0cd1498>] lr : [<c0627c38>] psr: 800c0013 [ 75s] [ 40.165007] sp : eee25e28 ip : eee25e38 fp : eee25e34 [ 75s] [ 40.166922] r10: eca39400 r9 : 00000005 r8 : efef1978 [ 75s] [ 40.167795] r7 : 01400000 r6 : 00000001 r5 : eca39438 r4 : efafefb4 [ 75s] [ 40.169889] r3 : 00002337 r2 : 00002338 r1 : 00000000 r0 : efafefd0 [ 75s] [ 40.171117] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 75s] [ 40.172438] Control: 30c5383d Table: 6c9f0000 DAC: dbadc0de [ 75s] [ 40.173374] CPU: 1 PID: 29 Comm: khugepaged Tainted: G D 4.12.14-3.gf2b9298-lpae #1 [ 75s] [ 40.174817] Hardware name: Generic DT based system [ 75s] [ 40.175668] [<c044190c>] (unwind_backtrace) from [<c043a968>] (show_stack+0x20/0x28) [ 75s] [ 40.176973] [<c043a968>] (show_stack) from [<c0824278>] (dump_stack+0x94/0xa8) [ 75s] [ 40.178128] [<c0824278>] (dump_stack) from [<c043740c>] (show_regs+0x1c/0x24) [ 75s] [ 40.179752] [<c043740c>] (show_regs) from [<c05452ec>] (watchdog_timer_fn+0x270/0x2e0) [ 75s] [ 40.180987] [<c05452ec>] (watchdog_timer_fn) from [<c04fb570>] (__hrtimer_run_queues+0x140/0x390) [ 75s] [ 40.182364] [<c04fb570>] (__hrtimer_run_queues) from [<c04fba28>] (hrtimer_interrupt+0xb8/0x208) [ 75s] [ 40.183727] [<c04fba28>] (hrtimer_interrupt) from [<c0b3f6bc>] (arch_timer_handler_virt+0x38/0x50) [ 75s] [ 40.185148] [<c0b3f6bc>] (arch_timer_handler_virt) from [<c04e5294>] (handle_percpu_devid_irq+0x90/0x2c0) [ 75s] [ 40.186696] [<c04e5294>] (handle_percpu_devid_irq) from [<c04dfb9c>] (generic_handle_irq+0x34/0x48) [ 75s] [ 40.188132] [<c04dfb9c>] (generic_handle_irq) from [<c04e01bc>] (__handle_domain_irq+0x6c/0xc8) [ 75s] [ 40.189888] [<c04e01bc>] (__handle_domain_irq) from [<c040182c>] (gic_handle_irq+0x48/0x8c) [ 75s] [ 40.191228] [<c040182c>] (gic_handle_irq) from [<c0cd3378>] (__irq_svc+0x58/0x8c) [ 75s] [ 40.192445] Exception stack(0xeee25dd8 to 0xeee25e20) [ 75s] [ 40.193301] 5dc0: efafefd0 00000000 [ 75s] [ 40.194547] 5de0: 00002338 00002337 efafefb4 eca39438 00000001 01400000 efef1978 00000005 [ 75s] [ 40.195838] 5e00: eca39400 eee25e34 eee25e38 eee25e28 c0627c38 c0cd1498 800c0013 ffffffff [ 75s] [ 40.197228] [<c0cd3378>] (__irq_svc) from [<c0cd1498>] (_raw_spin_lock+0x58/0x70) [ 75s] [ 40.198587] [<c0cd1498>] (_raw_spin_lock) from [<c0627c38>] (khugepaged+0x17c4/0x215c) [ 75s] [ 40.200252] [<c0627c38>] (khugepaged) from [<c049bbf0>] (kthread+0x170/0x178) [ 75s] [ 40.201435] [<c049bbf0>] (kthread) from [<c0435fc8>] (ret_from_fork+0x14/0x2c) -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org