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World Community Grid Forums
Category: Support
Forum: Android Support Forum
Thread: Tasks generating SIGSEGV |
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Thread Status: Active Total posts in this thread: 21
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges: 
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Hi Folks,
I have been running several projects on my Nexus 5 for a while and they all seem to be generating errors. My phone has been doing OpenZika and Smash Childhood Cancer and the problem has gotten to the point that all jobs are erroring out now. Sample error output: <core_client_version>7.4.53</core_client_version> <![CDATA[ <message> process exited with code 193 (0xc1, -63) </message> <stderr_txt> INFO: No state to restore. Start from the beginning. [06:27:50] Number of tasks = 24 [06:27:50] Running task 0,CPU time at start of task 0 was 0.000000 [06:27:50] ./ZINC000355024465.pdbqt size = 25 5 ../../projects/www.worldcommunitygrid.org/zika.x3hkw_HCV1a_NS5B_chnA_confB.pdbqt size = 5347 0 [06:30:20] Number of tasks = 24 [06:30:20] Running task 0,CPU time at start of task 0 was 0.000000 [06:30:20] ./ZINC000355024465.pdbqt size = 25 5 ../../projects/www.worldcommunitygrid.org/zika.x3hkw_HCV1a_NS5B_chnA_confB.pdbqt size = 5347 0 [08:44:48] Number of tasks = 24 [08:44:48] Running task 0,CPU time at start of task 0 was 0.000000 [08:44:48] ./ZINC000355024465.pdbqt size = 25 5 ../../projects/www.worldcommunitygrid.org/zika.x3hkw_HCV1a_NS5B_chnA_confB.pdbqt size = 5347 0 [08:48:48] Finished task #0 cpu time used 884.950000 [08:48:48] Running task 1,CPU time at start of task 1 was 884.950000 [08:48:48] ./ZINC000355024539.pdbqt size = 26 9 ../../projects/www.worldcommunitygrid.org/zika.x3hkw_HCV1a_NS5B_chnA_confB.pdbqt size = 5347 0 [09:30:06] Finished task #1 cpu time used 1648.960000 [09:30:06] Running task 2,CPU time at start of task 2 was 2533.910000 [09:30:06] ./ZINC000355024540.pdbqt size = 26 9 ../../projects/www.worldcommunitygrid.org/zika.x3hkw_HCV1a_NS5B_chnA_confB.pdbqt size = 5347 0 SIGSEGV: segmentation violation Exiting... </stderr_txt> ]]> Any ideas? Cheers, skelband |
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges:
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I have upgraded my phone to the latest LineageOS to see if that helps...
Not running stock Google Android now. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I have not seen any errors on any of my androids, although I am only running SCC at this time.
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges:
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I have had to remove BOINC from the 3 Nexus 5s that I have. Just generating SIGSEGVs all the time.
----------------------------------------The upgrade to LineageOS made no difference. I'll just give up on the Android compute. :( [Edit 1 times, last edit by skelband at Jun 18, 2018 5:06:36 PM] |
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges:
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For the record, I just stuck with the default settings after installing BOINC.
The Phone is an D820 Nexus 5 now running LineageOS 14.1 (7.1.2 Android equivalent). |
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Coleslaw
Veteran Cruncher USA Joined: Mar 29, 2007 Post Count: 1343 Status: Offline Project Badges: 
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Does it continue to fail running only one work unit at a time?
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges:
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Yes, I get failures if I restrict to single task execution, although some some of the tasks do complete.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
You mentioned you had three nexus phones. All three did the same thing?
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skelband
Cruncher Joined: Sep 9, 2016 Post Count: 17 Status: Offline Project Badges:
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Sorry typo, just the 2. And yes, they both exhibit the problem.
----------------------------------------It really is weird. If anyone has any suggestions as to what to try, I am willing to put BOINC on my main phone to try. Interestingly, one of the jobs that failed most recently generated a SIGILL. Not sure what that's all about. :S I should probably point out that the phone is very stable in all other respects otherwise I would start to worry about memory problems. I run Netflix/Slack and number of other heavyish apps and I don't ever seem to see any stability issues. [Edit 2 times, last edit by skelband at Jun 20, 2018 4:20:20 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
You mentioned a fresh install of Lineage OS, so I am guessing you don't have any bloatware that would fill up the storage. Do you by chance have BOINC restricted to only use a low percentage of storage space in the preferences?
Everything that I am reading online about this points to memory/storage issues. People use the word "memory" when I believe them to be discussing actual storage. Can you try a clean install of BOINC, and in the preferences allow only one CPU. Allow 90% or higher RAM usage, and allow BOINC to use 90% of storage. See if it will run one task at a time without issue. |
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