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From: bugzilla-daemon@bugzilla.kernel.org
To: linuxppc-dev@lists.ozlabs.org
Subject: [Bug 207129] PowerMac G4 DP (5.6.2 debug kernel + inline KASAN) freezes shortly after booting with "do_IRQ: stack overflow: 1760"
Date: Wed, 08 Apr 2020 14:55:09 +0000	[thread overview]
Message-ID: <bug-207129-206035-UnmscmA0jt@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-207129-206035@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=207129

--- Comment #5 from Christophe Leroy (christophe.leroy@c-s.fr) ---
Ok, so as a summary:
- With CONFIG_THREAD_SHIFT = 13 and CONFIG_DEBUG_STACKOVERFLOW, the system gets
stuck
- With CONFIG_THREAD_SHIFT = 13 and without CONFIG_DEBUG_STACKOVERFLOW, stack
overflow is not really detected until it gets into kernel text !!!
- With CONFIG_THREAD_SHIFT = 14 it runs fine
- With CONFIG_VMAP_STACK, the automatic restart doesn't work
- Without CONFIG_VMAP_STACK, the automatic restart works

So I'll send a patch to set CONFIG_THREAD_SHIFT to 14 when CONFIG_KASAN is
selected. x86 and arm64 already do that.

And I'll try to investigate the other points when I have time.

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  parent reply	other threads:[~2020-04-08 14:58 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-05 21:32 [Bug 207129] New: PowerMac G4 DP (5.6.2 debug kernel + inline KASAN) freezes shortly after booting with "do_IRQ: stack overflow: 1760" bugzilla-daemon
2020-04-06  5:29 ` [Bug 207129] " bugzilla-daemon
2020-04-06 12:26 ` bugzilla-daemon
2020-04-06 12:27 ` bugzilla-daemon
2020-04-06 22:57 ` bugzilla-daemon
2020-04-08 14:55 ` bugzilla-daemon [this message]
2020-04-08 15:59 ` bugzilla-daemon
2024-02-26 11:02 ` bugzilla-daemon
2024-02-26 11:02 ` bugzilla-daemon
2024-02-27  0:40 ` bugzilla-daemon
2024-02-27  0:42 ` bugzilla-daemon
2024-02-27 15:25 ` bugzilla-daemon
2024-02-28 21:44 ` bugzilla-daemon

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