From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [PATCH v2] powerpc/64: mark emergency stacks valid to unwind
Date: Wed, 1 Apr 2020 23:53:29 +1100 (AEDT) [thread overview]
Message-ID: <48smMs3qCbz9sTW@ozlabs.org> (raw)
In-Reply-To: <20200325104144.158362-1-npiggin@gmail.com>
On Wed, 2020-03-25 at 10:41:44 UTC, Nicholas Piggin wrote:
> Before:
>
> WARNING: CPU: 0 PID: 494 at arch/powerpc/kernel/irq.c:343
> CPU: 0 PID: 494 Comm: a Tainted: G W
> NIP: c00000000001ed2c LR: c000000000d13190 CTR: c00000000003f910
> REGS: c0000001fffd3870 TRAP: 0700 Tainted: G W
> MSR: 8000000000021003 <SF,ME,RI,LE> CR: 28000488 XER: 00000000
> CFAR: c00000000001ec90 IRQMASK: 0
> GPR00: c000000000aeb12c c0000001fffd3b00 c0000000012ba300 0000000000000000
> GPR04: 0000000000000000 0000000000000000 000000010bd207c8 6b00696e74657272
> GPR08: 0000000000000000 0000000000000000 0000000000000000 efbeadde00000000
> GPR12: 0000000000000000 c0000000014a0000 0000000000000000 0000000000000000
> GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> GPR24: 0000000000000000 0000000000000000 0000000000000000 000000010bd207bc
> GPR28: 0000000000000000 c00000000148a898 0000000000000000 c0000001ffff3f50
> NIP [c00000000001ed2c] arch_local_irq_restore.part.0+0xac/0x100
> LR [c000000000d13190] _raw_spin_unlock_irqrestore+0x50/0xc0
> Call Trace:
> Instruction dump:
> 60000000 7d2000a6 71298000 41820068 39200002 7d210164 4bffff9c 60000000
> 60000000 7d2000a6 71298000 4c820020 <0fe00000> 4e800020 60000000 60000000
>
> After:
>
> WARNING: CPU: 0 PID: 499 at arch/powerpc/kernel/irq.c:343
> CPU: 0 PID: 499 Comm: a Not tainted
> NIP: c00000000001ed2c LR: c000000000d13210 CTR: c00000000003f980
> REGS: c0000001fffd3870 TRAP: 0700 Not tainted
> MSR: 8000000000021003 <SF,ME,RI,LE> CR: 28000488 XER: 00000000
> CFAR: c00000000001ec90 IRQMASK: 0
> GPR00: c000000000aeb1ac c0000001fffd3b00 c0000000012ba300 0000000000000000
> GPR04: 0000000000000000 0000000000000000 00000001347607c8 6b00696e74657272
> GPR08: 0000000000000000 0000000000000000 0000000000000000 efbeadde00000000
> GPR12: 0000000000000000 c0000000014a0000 0000000000000000 0000000000000000
> GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
> GPR24: 0000000000000000 0000000000000000 0000000000000000 00000001347607bc
> GPR28: 0000000000000000 c00000000148a898 0000000000000000 c0000001ffff3f50
> NIP [c00000000001ed2c] arch_local_irq_restore.part.0+0xac/0x100
> LR [c000000000d13210] _raw_spin_unlock_irqrestore+0x50/0xc0
> Call Trace:
> [c0000001fffd3b20] [c000000000aeb1ac] of_find_property+0x6c/0x90
> [c0000001fffd3b70] [c000000000aeb1f0] of_get_property+0x20/0x40
> [c0000001fffd3b90] [c000000000042cdc] rtas_token+0x3c/0x70
> [c0000001fffd3bb0] [c0000000000dc318] fwnmi_release_errinfo+0x28/0x70
> [c0000001fffd3c10] [c0000000000dcd8c] pseries_machine_check_realmode+0x1dc/0x540
> [c0000001fffd3cd0] [c00000000003fe04] machine_check_early+0x54/0x70
> [c0000001fffd3d00] [c000000000008384] machine_check_early_common+0x134/0x1f0
> --- interrupt: 200 at 0x1347607c8
> LR = 0x7fffafbd8328
> Instruction dump:
> 60000000 7d2000a6 71298000 41820068 39200002 7d210164 4bffff9c 60000000
> 60000000 7d2000a6 71298000 4c820020 <0fe00000> 4e800020 60000000 60000000
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/a2e366832f3f4d5e1b47b7c7f7c41977bd5100f4
cheers
prev parent reply other threads:[~2020-04-01 13:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-25 10:41 [PATCH v2] powerpc/64: mark emergency stacks valid to unwind Nicholas Piggin
2020-04-01 12:53 ` Michael Ellerman [this message]
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