[Bug libgcc/91053] __builtin___clear_cache can fail

2019-07-05 Thread oth+gccbugs at google dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91053 --- Comment #2 from Orion Hodson --- For sure the goal wasn't to suggest that this was due to a privileged operation.

[Bug libgcc/91053] __builtin___clear_cache can fail

2019-07-02 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91053 --- Comment #1 from Andrew Pinski --- So was reading the code. The only time a fault will happen when a page is not mapped in. This happens if the page was paged out (this is why it happens under heavily pressure). This is not about being priv