[PATCH] malloc: add locking to thread cache

Szabolcs Nagy szabolcs.nagy@arm.com
Tue Jan 26 12:45:00 GMT 2016


On 26/01/16 00:25, Joern Engel wrote:
> With signals we can reenter the thread-cache.  Protect against that with
> a lock.  Will almost never happen in practice, it took the company five
> years to reproduce a similar race in the existing malloc.  But easy to
> trigger with a targeted test.

why do you try to make malloc as-safe?

isn't it better to fix malloc usage in signal handlers?



More information about the Libc-alpha mailing list