Re: mach in signal handler
Re: mach in signal handler
- Subject: Re: mach in signal handler
- From: Michael Smith <email@hidden>
- Date: Sun, 4 Feb 2007 12:29:48 -0800
On Feb 2, 2007, at 11:28 PM, Cyrus Harmon wrote:
On Feb 1, 2007, at 10:04 PM, Terry Lambert wrote:
A good example would be "malloc": it's always wrong to allocate or
free memory in a signal handler.
Hmm... I suppose if malloc is off limits, you're probably going to
tell me I can't call vm_allocate either. damn.
Actually, you can probably get away with that. There are
possibilities for deadlock in low memory situations, but they are
systemic and nothing works well when you can't provide physical pages
in a timely fashion, so you would have good company.
= Mike
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