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X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR11MB5912 X-OriginatorOrg: intel.com Hello, we reported "[bigeasy-staging:futex_local_v4.5] [futex] 51319c5cb6: stress-ng.pthread.ops_per_sec 68.4% regression" in https://lore.kernel.org/all/202412201111.1290bdf8-lkp@intel.com/ now we also notice one new issue as below. it doesn't always happen, but with considerable rate, and keeps clean on parent by more runs. 7ee6fb8b9098b494 51319c5cb6c2f84994a14d11de0 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :50 34% 17:52 dmesg.BUG:scheduling_while_atomic :50 34% 17:52 dmesg.BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c below full report FYI. kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c" on: commit: 51319c5cb6c2f84994a14d11de0fc26321bed99d ("futex: Resize futex hash table based on number of threads.") https://git.kernel.org/cgit/linux/kernel/git/bigeasy/staging.git futex_local_v4.5 in testcase: xfstests version: xfstests-x86_64-8467552f-1_20241215 with following parameters: disk: 4HDD fs: xfs test: xfs-scratch-reflink-06 config: x86_64-rhel-9.4-func compiler: gcc-12 test machine: 4 threads Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz (Skylake) with 16G memory (please refer to attached dmesg/kmsg for entire log/backtrace) 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/202412241517.b81e285e-lkp@intel.com [ 145.073215][ C1] BUG: sleeping function called from invalid context at kernel/nsproxy.c:243 [ 145.073222][ C1] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3374, name: xfs_repair [ 145.073224][ C1] preempt_count: 7ffffffe, expected: 0 [ 145.073226][ C1] RCU nest depth: 0, expected: 0 [ 145.073229][ C1] CPU: 1 UID: 0 PID: 3374 Comm: xfs_repair Tainted: G S 6.13.0-rc1-00008-g51319c5cb6c2 #1 [ 145.073234][ C1] Tainted: [S]=CPU_OUT_OF_SPEC [ 145.073235][ C1] Hardware name: HP HP Z238 Microtower Workstation/8183, BIOS N51 Ver. 01.63 10/05/2017 [ 145.073236][ C1] Call Trace: [ 145.073238][ C1] [ 145.073239][ C1] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) [ 145.073247][ C1] __might_resched (kernel/sched/core.c:8759) [ 145.073252][ C1] ? free_pid (kernel/pid.c:163) [ 145.073255][ C1] switch_task_namespaces (include/linux/kernel.h:73 kernel/nsproxy.c:243) [ 145.073259][ C1] copy_process (kernel/fork.c:2678) [ 145.073264][ C1] ? __pfx_copy_process (kernel/fork.c:2153) [ 145.073267][ C1] ? _inline_copy_from_user (arch/x86/include/asm/uaccess_64.h:134 arch/x86/include/asm/uaccess_64.h:134 arch/x86/include/asm/uaccess_64.h:141 include/linux/uaccess.h:178) [ 145.073271][ C1] ? copy_clone_args_from_user (include/linux/uaccess.h:401 kernel/fork.c:2999) [ 145.073275][ C1] kernel_clone (include/linux/random.h:26 kernel/fork.c:2832) [ 145.073277][ C1] ? __pfx_kernel_clone (kernel/fork.c:2791) [ 145.073279][ C1] ? __pfx___alloc_pages_noprof (mm/page_alloc.c:4717) [ 145.073283][ C1] ? __pfx_mm_cid_get+0x10/0x10 [ 145.073286][ C1] __do_sys_clone3 (kernel/fork.c:3135) [ 145.073289][ C1] ? __pfx___do_sys_clone3 (kernel/fork.c:3115) [ 145.073292][ C1] ? __pfx_try_charge_memcg (mm/memcontrol.c:2186) [ 145.073296][ C1] ? __memcg_slab_post_alloc_hook (mm/memcontrol.c:3001 (discriminator 2)) [ 145.073299][ C1] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) [ 145.073302][ C1] ? __pfx__raw_spin_lock_irq (kernel/locking/spinlock.c:169) [ 145.073304][ C1] ? __mod_memcg_lruvec_state (mm/memcontrol.c:583 mm/memcontrol.c:766) [ 145.073307][ C1] ? __pfx__raw_spin_lock (kernel/locking/spinlock.c:153) [ 145.073309][ C1] ? recalc_sigpending (arch/x86/include/asm/bitops.h:75 include/asm-generic/bitops/instrumented-atomic.h:42 include/linux/thread_info.h:102 kernel/signal.c:180 kernel/signal.c:177) [ 145.073313][ C1] ? sigprocmask (kernel/signal.c:3242) [ 145.073315][ C1] ? __lruvec_stat_mod_folio (mm/memcontrol.c:811) [ 145.073318][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 145.073321][ C1] ? __pfx_sigprocmask (kernel/signal.c:3219) [ 145.073324][ C1] ? __folio_mod_stat (mm/rmap.c:1303) [ 145.073328][ C1] ? _copy_to_user (arch/x86/include/asm/uaccess_64.h:126 arch/x86/include/asm/uaccess_64.h:147 include/linux/uaccess.h:197 lib/usercopy.c:26) [ 145.073330][ C1] ? __x64_sys_rt_sigprocmask (kernel/signal.c:3324 kernel/signal.c:3301 kernel/signal.c:3301) [ 145.073333][ C1] ? __pfx___x64_sys_rt_sigprocmask (kernel/signal.c:3301) [ 145.073337][ C1] ? syscall_exit_to_user_mode (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:92 include/linux/entry-common.h:232 kernel/entry/common.c:206 kernel/entry/common.c:218) [ 145.073340][ C1] ? do_syscall_64 (arch/x86/entry/common.c:102) [ 145.073343][ C1] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 145.073345][ C1] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) [ 145.073347][ C1] ? mt_find (lib/maple_tree.c:6950) [ 145.073350][ C1] ? try_to_wake_up (kernel/sched/core.c:4168) [ 145.073353][ C1] ? wake_q_add (arch/x86/include/asm/atomic.h:93 include/linux/atomic/atomic-arch-fallback.h:749 include/linux/atomic/atomic-instrumented.h:253 include/linux/refcount.h:184 include/linux/refcount.h:241 include/linux/refcount.h:258 include/linux/sched/task.h:119 kernel/sched/core.c:1024) [ 145.073356][ C1] ? __pfx_try_to_wake_up (kernel/sched/core.c:4168) [ 145.073359][ C1] ? rwsem_mark_wake (kernel/locking/rwsem.c:434) [ 145.073363][ C1] ? __pfx_rwsem_mark_wake (kernel/locking/rwsem.c:412) [ 145.073366][ C1] ? __asan_memset (mm/kasan/shadow.c:84) [ 145.073369][ C1] ? rseq_ip_fixup (kernel/rseq.c:257 kernel/rseq.c:291) [ 145.073373][ C1] ? __pfx_rseq_ip_fixup (kernel/rseq.c:275) [ 145.073376][ C1] ? __pfx_mem_cgroup_handle_over_high (mm/memcontrol.c:2092) [ 145.073379][ C1] ? do_user_addr_fault (include/linux/mmap_lock.h:171 arch/x86/mm/fault.c:1417) [ 145.073383][ C1] ? fpregs_restore_userregs (arch/x86/include/asm/bitops.h:75 include/asm-generic/bitops/instrumented-atomic.h:42 include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79) [ 145.073387][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 145.073391][ C1] RIP: 0033:0x7f340071d849 [ 145.073394][ C1] Code: 31 ed e9 44 ff ff ff e8 25 e9 00 00 0f 1f 44 00 00 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7 All code ======== 0: 31 ed xor %ebp,%ebp 2: e9 44 ff ff ff jmp 0xffffffffffffff4b 7: e8 25 e9 00 00 call 0xe931 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: b8 ea ff ff ff mov $0xffffffea,%eax 16: 48 85 ff test %rdi,%rdi 19: 74 2c je 0x47 1b: 48 85 d2 test %rdx,%rdx 1e: 74 27 je 0x47 20: 49 89 c8 mov %rcx,%r8 23: b8 b3 01 00 00 mov $0x1b3,%eax 28: 0f 05 syscall 2a:* 48 85 c0 test %rax,%rax <-- trapping instruction 2d: 7c 18 jl 0x47 2f: 74 01 je 0x32 31: c3 ret 32: 31 ed xor %ebp,%ebp 34: 48 83 e4 f0 and $0xfffffffffffffff0,%rsp 38: 4c 89 c7 mov %r8,%rdi 3b: ff d2 call *%rdx 3d: 48 89 c7 mov %rax,%rdi Code starting with the faulting instruction =========================================== 0: 48 85 c0 test %rax,%rax 3: 7c 18 jl 0x1d 5: 74 01 je 0x8 7: c3 ret 8: 31 ed xor %ebp,%ebp a: 48 83 e4 f0 and $0xfffffffffffffff0,%rsp e: 4c 89 c7 mov %r8,%rdi 11: ff d2 call *%rdx 13: 48 89 c7 mov %rax,%rdi [ 145.073397][ C1] RSP: 002b:00007f33b4ff8988 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3 [ 145.073400][ C1] RAX: ffffffffffffffda RBX: 00007f340069cef0 RCX: 00007f340071d849 [ 145.073402][ C1] RDX: 00007f340069cef0 RSI: 0000000000000058 RDI: 00007f33b4ff89d0 [ 145.073404][ C1] RBP: 00007f33f20fa680 R08: 00007f33f20fa680 R09: 00007f33b4ff8ac7 [ 145.073405][ C1] R10: 0000000000000008 R11: 0000000000000206 R12: fffffffffffffd80 [ 145.073407][ C1] R13: 0000000000000000 R14: 00007f33b4ff89d0 R15: 00007f33f18fa000 [ 145.073410][ C1] [ 145.073416][ C1] BUG: scheduling while atomic: xfs_repair/3374/0x7fffffff [ 145.073418][ C1] Modules linked in: [ 145.073420][ T3374] xfs btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c snd_soc_avs snd_soc_hda_codec snd_hda_codec_hdmi snd_hda_ext_core sd_mod intel_rapl_msr intel_rapl_common snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic snd_hda_scodec_component x86_pkg_temp_thermal intel_powerclamp snd_compress coretemp sg snd_hda_intel snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi ipmi_devintf ipmi_msghandler i915 kvm snd_hda_codec cec crct10dif_pclmul crc32_pclmul snd_hda_core intel_gtt crc32c_intel snd_hwdep drm_buddy ghash_clmulni_intel mei_wdt wmi_bmof ttm snd_pcm rapl ahci libahci intel_cstate drm_display_helper snd_timer snd drm_kms_helper video serio_raw pcspkr intel_uncore soundcore mei_me i2c_i801 intel_pmc_core intel_pch_thermal libata ie31200_edac i2c_smbus mei intel_vsec pmt_telemetry pmt_class wmi acpi_pad binfmt_misc loop fuse drm dm_mod ip_tables [ 145.448098][ C1] [ 145.448101][ C1] CPU: 1 UID: 0 PID: 3374 Comm: xfs_repair Tainted: G S W 6.13.0-rc1-00008-g51319c5cb6c2 #1 [ 145.448106][ C1] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN [ 145.448107][ C1] Hardware name: HP HP Z238 Microtower Workstation/8183, BIOS N51 Ver. 01.63 10/05/2017 [ 145.448108][ C1] Call Trace: [ 145.448124][ C1] [ 145.448125][ C1] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) [ 145.448131][ C1] __schedule_bug (kernel/sched/core.c:5930) [ 145.448136][ C1] schedule_debug (arch/x86/include/asm/preempt.h:33 kernel/sched/core.c:5957) [ 145.448138][ C1] ? __do_sys_clone3 (kernel/fork.c:3135) [ 145.448141][ C1] __schedule (arch/x86/include/asm/jump_label.h:36 include/linux/jump_label.h:207 kernel/sched/features.h:57 kernel/sched/core.c:6657) [ 145.448144][ C1] ? __pfx___schedule (kernel/sched/core.c:6637) [ 145.448147][ C1] ? __pfx_try_charge_memcg (mm/memcontrol.c:2186) [ 145.448164][ C1] ? __memcg_slab_post_alloc_hook (mm/memcontrol.c:3001 (discriminator 2)) [ 145.448167][ C1] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) [ 145.448170][ C1] schedule (arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6834 kernel/sched/core.c:6848) [ 145.448173][ C1] syscall_exit_to_user_mode (kernel/entry/common.c:102 include/linux/entry-common.h:329 kernel/entry/common.c:207 kernel/entry/common.c:218) [ 145.448176][ C1] do_syscall_64 (arch/x86/entry/common.c:102) [ 145.448178][ C1] ? __pfx_sigprocmask (kernel/signal.c:3219) [ 145.448181][ C1] ? __folio_mod_stat (mm/rmap.c:1303) [ 145.448185][ C1] ? _copy_to_user (arch/x86/include/asm/uaccess_64.h:126 arch/x86/include/asm/uaccess_64.h:147 include/linux/uaccess.h:197 lib/usercopy.c:26) [ 145.448189][ C1] ? __x64_sys_rt_sigprocmask (kernel/signal.c:3324 kernel/signal.c:3301 kernel/signal.c:3301) [ 145.448207][ C1] ? __pfx___x64_sys_rt_sigprocmask (kernel/signal.c:3301) [ 145.448211][ C1] ? syscall_exit_to_user_mode (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:92 include/linux/entry-common.h:232 kernel/entry/common.c:206 kernel/entry/common.c:218) [ 145.448213][ C1] ? do_syscall_64 (arch/x86/entry/common.c:102) [ 145.448215][ C1] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 145.448218][ C1] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) [ 145.448233][ C1] ? mt_find (lib/maple_tree.c:6950) [ 145.448236][ C1] ? try_to_wake_up (kernel/sched/core.c:4168) [ 145.448239][ C1] ? wake_q_add (arch/x86/include/asm/atomic.h:93 include/linux/atomic/atomic-arch-fallback.h:749 include/linux/atomic/atomic-instrumented.h:253 include/linux/refcount.h:184 include/linux/refcount.h:241 include/linux/refcount.h:258 include/linux/sched/task.h:119 kernel/sched/core.c:1024) [ 145.448242][ C1] ? __pfx_try_to_wake_up (kernel/sched/core.c:4168) [ 145.448245][ C1] ? rwsem_mark_wake (kernel/locking/rwsem.c:434) [ 145.448249][ C1] ? __pfx_rwsem_mark_wake (kernel/locking/rwsem.c:412) [ 145.448252][ C1] ? __asan_memset (mm/kasan/shadow.c:84) [ 145.448256][ C1] ? rseq_ip_fixup (kernel/rseq.c:257 kernel/rseq.c:291) [ 145.448259][ C1] ? __pfx_rseq_ip_fixup (kernel/rseq.c:275) [ 145.448262][ C1] ? __pfx_mem_cgroup_handle_over_high (mm/memcontrol.c:2092) [ 145.448265][ C1] ? do_user_addr_fault (include/linux/mmap_lock.h:171 arch/x86/mm/fault.c:1417) [ 145.448268][ C1] ? fpregs_restore_userregs (arch/x86/include/asm/bitops.h:75 include/asm-generic/bitops/instrumented-atomic.h:42 include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79) [ 145.448273][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 145.448277][ C1] RIP: 0033:0x7f340071d849 [ 145.448280][ C1] Code: 31 ed e9 44 ff ff ff e8 25 e9 00 00 0f 1f 44 00 00 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7 All code ======== 0: 31 ed xor %ebp,%ebp 2: e9 44 ff ff ff jmp 0xffffffffffffff4b 7: e8 25 e9 00 00 call 0xe931 c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 11: b8 ea ff ff ff mov $0xffffffea,%eax 16: 48 85 ff test %rdi,%rdi 19: 74 2c je 0x47 1b: 48 85 d2 test %rdx,%rdx 1e: 74 27 je 0x47 20: 49 89 c8 mov %rcx,%r8 23: b8 b3 01 00 00 mov $0x1b3,%eax 28: 0f 05 syscall 2a:* 48 85 c0 test %rax,%rax <-- trapping instruction 2d: 7c 18 jl 0x47 2f: 74 01 je 0x32 31: c3 ret 32: 31 ed xor %ebp,%ebp 34: 48 83 e4 f0 and $0xfffffffffffffff0,%rsp 38: 4c 89 c7 mov %r8,%rdi 3b: ff d2 call *%rdx 3d: 48 89 c7 mov %rax,%rdi Code starting with the faulting instruction =========================================== 0: 48 85 c0 test %rax,%rax 3: 7c 18 jl 0x1d 5: 74 01 je 0x8 7: c3 ret 8: 31 ed xor %ebp,%ebp a: 48 83 e4 f0 and $0xfffffffffffffff0,%rsp e: 4c 89 c7 mov %r8,%rdi 11: ff d2 call *%rdx 13: 48 89 c7 mov %rax,%rdi [ 145.448282][ C1] RSP: 002b:00007f33b4ff8988 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3 [ 145.448285][ C1] RAX: ffffffffffffffea RBX: 00007f340069cef0 RCX: 00007f340071d849 [ 145.448287][ C1] RDX: 00007f340069cef0 RSI: 0000000000000058 RDI: 00007f33b4ff89d0 [ 145.448289][ C1] RBP: 00007f33f20fa680 R08: 00007f33f20fa680 R09: 00007f33b4ff8ac7 [ 145.448290][ C1] R10: 0000000000000008 R11: 0000000000000206 R12: fffffffffffffd80 [ 145.448292][ C1] R13: 0000000000000000 R14: 00007f33b4ff89d0 R15: 00007f33f18fa000 [ 145.448295][ C1] [ 156.427599][ T281] _check_xfs_filesystem: filesystem on /dev/sda4 is inconsistent (r) [ 156.427609][ T281] [ 156.439078][ T281] (see /lkp/benchmarks/xfstests/results//xfs/127.full for details) [ 156.439125][ T281] [ 156.472482][ T281] _check_dmesg: something found in dmesg (see /lkp/benchmarks/xfstests/results//xfs/127.dmesg) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241224/202412241517.b81e285e-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki