Messages in this thread | | | Subject | Re: WARNING: CPU: 5 PID: 0 at kernel/sched/fair.c:3306 | From | Dietmar Eggemann <> | Date | Fri, 9 Jul 2021 13:59:04 +0200 |
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On 09/07/2021 13:12, Bruno Goncalves wrote: > Hello, > > Since this commit (Commit: 9269d27e519a - Merge tag > 'timers-nohz-2021-06-28') we started to see the following call trace. > > [ 1765.915152] ------------[ cut here ]------------ > [ 1765.970347] cfs_rq->avg.load_avg || cfs_rq->avg.util_avg || > cfs_rq->avg.runnable_avg > [ 1765.970352] WARNING: CPU: 5 PID: 0 at kernel/sched/fair.c:3306 > update_blocked_averages+0x8e4/0x940 > [ 1766.170307] Modules linked in: dm_log_writes dm_flakey rfkill > mlx4_ib ipmi_ssif ib_uverbs ib_core mlx4_en intel_rapl_msr > intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp > acpi_ipmi sunrpc rapl ipmi_si iTCO_wdt intel_cstate intel_pmc_bxt > iTCO_vendor_support gpio_ich intel_uncore pcspkr ipmi_devintf lpc_ich > ipmi_msghandler mlx4_core fuse zram ip_tables x_tables xfs i915 > crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper > ghash_clmulni_intel cec drm video > [ 1766.685909] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G W > 5.13.0 #1 > [ 1766.773390] Hardware name: HP ProLiant m710 Server Cartridge/, BIOS > H03 04/26/2019 > [ 1766.863991] RIP: 0010:update_blocked_averages+0x8e4/0x940 > [ 1766.928557] Code: c7 c7 47 b5 5f 9b c6 05 3d ff 03 02 01 e8 29 16 > b3 00 e9 bc fe ff ff 48 c7 c7 b8 c6 5f 9b c6 05 63 0f 04 02 01 e8 ce > d3 b2 00 <0f> 0b 8b 83 78 01 00 00 e9 2d fb ff ff 48 c7 c7 70 c1 5f 9b > c6 05 > [ 1767.153523] RSP: 0018:ffffa2b5c01b0ee8 EFLAGS: 00010092 > [ 1767.216002] RAX: 0000000000000048 RBX: ffff91eb87ad9400 RCX: 0000000000000027 > [ 1767.301394] RDX: ffff91f25f358e18 RSI: 0000000000000001 RDI: ffff91f25f358e10 > [ 1767.386785] RBP: ffffa2b5c01b0f60 R08: 0000000000000000 R09: ffffa2b5c01b0d28 > [ 1767.472178] R10: ffffa2b5c01b0d20 R11: ffffffff9bf76208 R12: ffff91f25f36c900 > [ 1767.557568] R13: ffff91eb87ad9580 R14: 0000000000000001 R15: 00000198729d28c5 > [ 1767.642962] FS: 0000000000000000(0000) GS:ffff91f25f340000(0000) > knlGS:0000000000000000 > [ 1767.739811] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1767.808538] CR2: 00007f9192568590 CR3: 00000001079e6005 CR4: 00000000001706e0 > [ 1767.893931] Call Trace: > [ 1767.923077] <IRQ> > [ 1767.947017] run_rebalance_domains+0x44/0x60 > [ 1767.998039] __do_softirq+0xde/0x480 > [ 1768.040734] __irq_exit_rcu+0xe4/0x110 > [ 1768.085507] irq_exit_rcu+0xa/0x20 > [ 1768.126111] sysvec_apic_timer_interrupt+0x72/0x90 > [ 1768.183385] </IRQ> > [ 1768.208365] asm_sysvec_apic_timer_interrupt+0x12/0x20 > [ 1768.269805] RIP: 0010:cpuidle_enter_state+0x104/0x470 > [ 1768.330209] Code: 48 0f a3 05 1e 63 85 01 0f 82 63 02 00 00 31 ff > e8 21 3d 7c ff 45 84 ff 0f 85 dd 01 00 00 e8 63 8f 8b ff fb 66 0f 1f > 44 00 00 <45> 85 f6 0f 88 fb 00 00 00 49 63 d6 4c 2b 2c 24 48 8d 04 52 > 48 8d > [ 1768.555179] RSP: 0018:ffffa2b5c00bbeb0 EFLAGS: 00000246 > [ 1768.617657] RAX: 0000000080000001 RBX: 0000000000000001 RCX: 000000000000001f > [ 1768.703048] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a9fb21d > [ 1768.788440] RBP: ffffc2b5bfd40260 R08: 0000000000000000 R09: 0000000000000000 > [ 1768.873832] R10: 000000000000002a R11: 000000000000000d R12: ffffffff9c1043a0 > [ 1768.959226] R13: 0000019b28beb466 R14: 0000000000000001 R15: 0000000000000000 > [ 1769.044620] ? cpuidle_enter_state+0xfd/0x470 > [ 1769.096688] cpuidle_enter+0x29/0x40 > [ 1769.139377] do_idle+0x1e9/0x290 > [ 1769.177898] cpu_startup_entry+0x19/0x20 > [ 1769.224757] secondary_startup_64_no_verify+0xc2/0xcb > [ 1769.285164] irq event stamp: 2874708 > [ 1769.327849] hardirqs last enabled at (2874707): > [<ffffffff9a242ed5>] tick_nohz_idle_enter+0x65/0x90 > [ 1769.437205] hardirqs last disabled at (2874708): > [<ffffffff9a1bf08d>] do_idle+0xad/0x290 > [ 1769.534062] softirqs last enabled at (2874690): > [<ffffffff9a1808e4>] __irq_exit_rcu+0xe4/0x110 > [ 1769.638207] softirqs last disabled at (2874685): > [<ffffffff9a1808e4>] __irq_exit_rcu+0xe4/0x110 > [ 1769.742350] ---[ end trace fffd33f79ba8504e ]--- > > > We hit this issue running different tests and on different arches.
This has been reported already and is fixed with:
https://lkml.kernel.org/r/162488868552.395.3605721602918699622.tip-bot2@tip-bot2
https://lkml.kernel.org/r/162547163867.395.4833924212740469681.tip-bot2@tip-bot2
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