From: Michael Ellerman <mpe@ellerman.id.au>
To: Erhard Furtner <erhard_f@mailbox.org>, linux-bcachefs@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: 'do_IRQ: stack overflow: 1072' at using bcachefs partition (ppc32, kernel 6.10.5)
Date: Fri, 16 Aug 2024 21:55:46 +1000 [thread overview]
Message-ID: <87v8003cn1.fsf@mail.lhotse> (raw)
In-Reply-To: <20240815125651.3189da31@yea>
Erhard Furtner <erhard_f@mailbox.org> writes:
> Greetings!
>
> Basically bcachefs works on ppc32 but I get stack overflows like this one rather easy:
>
> [...]
> do_IRQ: stack overflow: 1072
> CPU: 1 PID: 2114 Comm: bash Not tainted 6.10.5-gentoo-PMacG4 #1
> Hardware name: PowerMac3,6 7455 0x80010303 PowerMac
> Call Trace:
> [effe3fc0] [c0785664] dump_stack_lvl+0x70/0x8c (unreliable)
> [effe3fe0] [c00081fc] __do_irq+0x28/0x80
> [effe3ff0] [c000873c] __do_IRQ+0x7c/0x84
> [c8aec430] [c8aec610] 0xc8aec610
^
That's your lowest frame on the process stack. It should actually extend
down to c8aec000, so you had a little bit of space left.
CONFIG_DEBUG_STACKOVERFLOW warns when you have less than 1/4 of the stack
free. You could try turning it off and see if the system survives.
The other thing to try would be increasing the THREAD_SHIFT to 14.
cheers
prev parent reply other threads:[~2024-08-16 11:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-15 10:56 'do_IRQ: stack overflow: 1072' at using bcachefs partition (ppc32, kernel 6.10.5) Erhard Furtner
2024-08-16 11:55 ` Michael Ellerman [this message]
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