On 03/13/2018 02:17 AM, PkmX via arch-general wrote:
Hi,
AFAIK this is the exact case of gcc bugzilla #84607:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84607
As this is an upstream bug this should affect all distributions, maybe the commenter on Debian is using 7.3.1 so he can't reproduce the issue?
That is good to know that it is being addressed. I can see this current handling of optimizations causing many of subtle non-traceable and just plain "wonky" errors that have been see these past few days. I thought the guy who posted it was nuts... It built and had the correct output on SuSE, but when I tried it on Arch - WTF? they was right. Who knows in how many subtle ways that could manifest itself. I've convinced it is as the root of the (Out of IOMMU space) error I have in the logs, and more than likely it is responsible for my hardlocks on the big servers. We will be looking for a fix -- hopefully soon. Thank you for letting me know. -- David C. Rankin, J.D.,P.E.