Bug 216410
| Summary: | WARNING: inconsistent lock state, "inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage" at boot | ||
|---|---|---|---|
| Product: | Platform Specific/Hardware | Reporter: | Erhard F. (erhard_f) |
| Component: | PPC-64 | Assignee: | platform_ppc-64 |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | PPC-64 | ||
| OS: | Linux | ||
| Kernel Version: | 6.0-rc2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg (6.0-rc2, PowerMac G5 11,2)
kernel .config (6.0-rc2, PowerMac G5 11,2) dmesg (6.0-rc2, PowerMac G5 11,2) kernel .config (6.0-rc2, PowerMac G5 11,2) |
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Created attachment 301650 [details]
kernel .config (6.0-rc2, PowerMac G5 11,2)
Created attachment 301651 [details]
dmesg (6.0-rc2, PowerMac G5 11,2)
Created attachment 301652 [details]
kernel .config (6.0-rc2, PowerMac G5 11,2)
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Created attachment 301649 [details] dmesg (6.0-rc2, PowerMac G5 11,2) With some lock debugging options turned on I get this at every boot: [...] ================================ WARNING: inconsistent lock state 6.0.0-rc2-PMacG5 #2 Tainted: G T -------------------------------- inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. swapper/0/1 [HC0[0]:SC0[0]:HE1:SE1] takes: c0000000024227f0 (native_tlbie_lock){+.?.}-{2:2}, at: .tlbie+0x138/0x4c0 {IN-SOFTIRQ-W} state was registered at: .lock_acquire+0x12c/0x4a0 ._raw_spin_lock+0x44/0x90 .tlbie+0x138/0x4c0 .native_hpte_invalidate+0xd4/0x320 .hash__kernel_map_pages+0x424/0x5a0 .free_pcp_prepare+0x744/0x890 .free_unref_page+0x30/0x2f0 .thread_stack_free_rcu+0x2c/0x50 .rcu_core+0x8b0/0x1c20 .__do_softirq+0x188/0x674 .do_softirq_own_stack+0x30/0x70 .__irq_exit_rcu+0x150/0x1d0 .irq_exit+0x10/0x50 .timer_interrupt+0x260/0x700 decrementer_common_virt+0x208/0x210 .power4_idle+0x5c/0x150 .arch_cpu_idle+0x60/0x200 .default_idle_call+0xd8/0x3bc .do_idle+0x148/0x210 .cpu_startup_entry+0x30/0x40 .start_secondary+0x650/0xc40 start_secondary_prolog+0x10/0x14 irq event stamp: 594659 hardirqs last enabled at (594659): [<c000000000ddb034>] ._raw_spin_unlock_irqrestore+0xa4/0x110 hardirqs last disabled at (594658): [<c000000000ddbfe8>] ._raw_spin_lock_irqsave+0xb8/0xd0 softirqs last enabled at (594548): [<c000000000ddc67c>] .__do_softirq+0x47c/0x674 softirqs last disabled at (594527): [<c0000000000143d0>] .do_softirq_own_stack+0x30/0x70 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(native_tlbie_lock); <Interrupt> lock(native_tlbie_lock); *** DEADLOCK *** no locks held by swapper/0/1. stack backtrace: CPU: 1 PID: 1 Comm: swapper/0 Tainted: G T 6.0.0-rc2-PMacG5 #2 Call Trace: [c0000000039d75b0] [c00000000090c714] .dump_stack_lvl+0xb0/0x124 (unreliable) [c0000000039d7640] [c000000000154fb0] .print_usage_bug.part.0+0x250/0x2a0 [c0000000039d76f0] [c00000000014e06c] .mark_lock+0xd9c/0xe40 [c0000000039d7830] [c00000000014eaa0] .__lock_acquire+0x5c0/0x2880 [c0000000039d7960] [c0000000001519cc] .lock_acquire+0x12c/0x4a0 [c0000000039d7a60] [c000000000ddaa14] ._raw_spin_lock+0x44/0x90 [c0000000039d7ae0] [c00000000005c678] .tlbie+0x138/0x4c0 [c0000000039d7b90] [c000000000053568] .hash__change_memory_range+0x108/0x160 [c0000000039d7c40] [c0000000000543fc] .hash__mark_initmem_nx+0x4c/0x90 [c0000000039d7cc0] [c00000000004f014] .mark_initmem_nx+0x24/0x60 [c0000000039d7d30] [c00000000004da54] .free_initmem+0x24/0x90 [c0000000039d7da0] [c0000000000111d8] .kernel_init+0x38/0x1a0 [c0000000039d7e10] [c00000000000bbf0] .ret_from_kernel_thread+0x58/0x60 Freeing unused kernel image (initmem) memory: 4216K Warning: Unable to mark rodata read only on this CPU.