https://bugs.kde.org/show_bug.cgi?id=415621
Bug ID: 415621
Summary: epoll_ctl reports for uninitialized padding
Product: valgrind
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: simon.rich...@hogyros.de
Target Milestone: ---
SUMMARY
On platforms where the epoll_event struct is padded (>= 64 bit architectures
except amd64), the padding is reported uninitialized unless the program
explicitly uses memset.
STEPS TO REPRODUCE
1. On powerpc64, compile and run
#include <sys/epoll.h>
int main(int, char **)
{
epoll_event evt;
evt.events = 0;
evt.data.ptr = nullptr;
epoll_ctl(0, EPOLL_CTL_ADD, 0, &evt);
}
OBSERVED RESULT
The padding is reported as uninitialized.
EXPECTED RESULT
No error, or an indication that this is mostly harmless.
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