Date: Thu, 22 Aug 2013 14:48:36 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: Litecoin mining Rafael, On Thu, Aug 22, 2013 at 01:33:34PM +0400, Solar Designer wrote: > I ran build.sh now, and cgminer works like you've shown above for about > one minute, then segfaults (I ran it twice so far, same result): [...] > Segmentation fault1.031Kh/s | A:0 R:0 HW:0 WU:0.0/m > root@...aro-ubuntu-desktop:~/LordRafa/cgminer-build# > > I had to explicitly switch to root to see the segfault message. When > running via the run.sh script, cgminer appears to terminate on its own > (the segfault message is somehow suppressed). > > Do you see the same problem? > > My guess is that the segfault might be happening whenever the first > share is found... although 1 minute to find 1 share may be too little > time at this low speed. I am now running it with ncurses interface, and it's been running for 40+ minutes with no shares (neither accepted nor rejected), and it did not segfault yet. Maybe I was extremely lucky to have it find a share in just 1 minute or so (twice) before, or maybe the ncurses interface makes some problem (unrelated to finding a share) go away. We need to do some GPU runs and then calculate the expected time to find a share on Epiphany at the current super low speed (I am getting 1027 h/s average for these 40+ minutes). Alexander
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