[PATCH v2] ARM: enable interrupts when unhandled user faults are triggered
Xie Yuanbin
xieyuanbin1 at huawei.com
Mon Jun 29 05:48:16 PDT 2026
On Mon, 29 Jun 2026 11:40:22 +0200, Sebastian Andrzej Siewior wrote:
> If this is moved to the callers of arm_notify_die() then I don't know
> what to do about baddataabort(). It looks like it gets invoked with
> disabled interrupts, too but I'm not sure. This looks like pre ARM v7.
> Is it reasonable to add such a check there?
Oh, I'm not sure about this place either. Would interrupts here be
disabled? I'm not familiar with the entry assembly code of v4t, so
I don't know how to construct a user-space program that can run to
baddataabort(), and I also don't have a v4t device to test it.
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