From: Shrikanth Hegde <sshegde@linux.ibm.com>
To: Andreas Schwab <schwab@linux-m68k.org>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
Cc: "Mukesh Kumar Chaurasiya (IBM)" <mkchauras@gmail.com>,
maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com,
ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com,
dvyukov@google.com, vincenzo.frascino@arm.com, oleg@redhat.com,
kees@kernel.org, luto@amacapital.net, wad@chromium.org,
mchauras@linux.ibm.com, thuth@redhat.com, ruanjinjie@huawei.com,
akpm@linux-foundation.org, macro@orcam.me.uk, ldv@strace.io,
charlie@rivosinc.com, deller@gmx.de, kevin.brodsky@arm.com,
ritesh.list@gmail.com, yeoreum.yun@arm.com,
agordeev@linux.ibm.com, segher@kernel.crashing.org,
mark.rutland@arm.com, ryan.roberts@arm.com, pmladek@suse.com,
feng.tang@linux.alibaba.com, peterz@infradead.org,
kan.liang@linux.intel.com, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com
Subject: Re: [PATCH v5 0/8] Generic IRQ entry/exit support for powerpc
Date: Tue, 7 Jul 2026 09:59:03 +0530 [thread overview]
Message-ID: <18acdffe-a06b-4bfa-bbf6-e38274700b04@linux.ibm.com> (raw)
In-Reply-To: <877bn9vfd4.fsf@igel.home>
On 7/5/26 5:05 PM, Andreas Schwab wrote:
> On Jul 05 2026, Christophe Leroy (CS GROUP) wrote:
>
>> Le 04/07/2026 à 17:49, Andreas Schwab a écrit :
>>> This breaks booting on the PowerMac G5 (PowerMac7,3), there is a panic
>>> somwhere in an irq.
>>>
>>
>> Do you have more details ? Like at least the dump of the panic Oops ?
>
> NIP .power4_idle_nap+0x30/0x34
> LR .power4_idle+0x64/0x70
> --- interrupt: 900
>
> .arch_spu_idle+0x88/0x100
> .default_idle_call+0x3c/0x5c
> .do_idle+0x194/0x2b4
> .cpu_startup_entry+0x3c/0x40
> .start_secondary+0x6b0/0x820
> start_secondary_prolog+0x10/0x14
>
>> Can it be reproduced on QEMU ?
>
> No, qemu does not support SMP.
>
Can you try "powersave=off" commandline to disable idlestate and
see if it boots?
Other call stacks are very likely not possible such as sched_balance_find_src_group
next prev parent reply other threads:[~2026-07-07 4:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 12:27 [PATCH v5 0/8] Generic IRQ entry/exit support for powerpc Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 1/8] powerpc: rename arch_irq_disabled_regs Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 2/8] powerpc: Prepare to build with generic entry/exit framework Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 3/8] powerpc: introduce arch_enter_from_user_mode Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 4/8] powerpc: Introduce syscall exit arch functions Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 5/8] powerpc: add exit_flags field in pt_regs Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 6/8] powerpc: Prepare for IRQ entry exit Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 7/8] powerpc: Enable GENERIC_ENTRY feature Mukesh Kumar Chaurasiya (IBM)
2026-04-27 12:27 ` [PATCH v5 8/8] powerpc: Remove unused functions Mukesh Kumar Chaurasiya (IBM)
2026-06-19 21:59 ` [PATCH v5 0/8] Generic IRQ entry/exit support for powerpc Madhavan Srinivasan
2026-06-23 11:11 ` Michal Suchánek
2026-06-24 7:38 ` Mukesh Kumar Chaurasiya
2026-07-04 15:49 ` Andreas Schwab
2026-07-05 6:49 ` Christophe Leroy (CS GROUP)
2026-07-05 11:35 ` Andreas Schwab
2026-07-07 4:29 ` Shrikanth Hegde [this message]
2026-07-05 12:02 ` Andreas Schwab
2026-07-06 6:02 ` Shrikanth Hegde
2026-07-06 15:26 ` Andreas Schwab
2026-07-06 19:21 ` Andreas Schwab
2026-07-05 18:00 ` Andreas Schwab
2026-07-07 6:05 ` Mukesh Kumar Chaurasiya
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