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mattekure

Call Traces found on server

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This morning I got the error "Call Traces found on Server", but I dont even know where to begin to look.  I have attached diagnostics file from this morning.  Along with the "Call Trace" error, there was a bunch of "Template URL for docker is missing" errors.

tower-diagnostics-20170730-1009.zip

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The call traces exist in the kernel ring buffer, to view it use dmesg from the command line. I prefer to use the -HT flags so that it uses a pager and give human readable timestamps. This is most likely caused by either running out of RAM or working your CPU too hard. 

 

Were you running a VM? What's your hardware specs?

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I want to use an existing topic as I am also getting Call Traces errors. Attached you can find diagnostic files. 

 

From the system log I can see errors like this:

python[12239]: segfault at 2aadb4b2dff8 ip 00002aadb00d96d1 sp 00002aadb4b2e000 error 6 in libpython2.7.so.1.0[2aadb006b000+342000]

 

and call trace like this

Aug  5 21:52:47 unRAID kernel: CPU: 2 PID: 20342 Comm: Plex Media Serv Not tainted 4.9.30-unRAID #1
Aug  5 21:52:47 unRAID kernel: Hardware name: HP ProLiant MicroServer Gen8, BIOS J06 11/02/2015
Aug  5 21:52:47 unRAID kernel: ffffc900037fbb28 ffffffff813a4a1b 0000000000000001 0000000000000000
Aug  5 21:52:47 unRAID kernel: ffffc900037fbbb8 ffffffff810cb5b1 024201ca810c9d8d ffffffff8193d4e2
Aug  5 21:52:47 unRAID kernel: ffffc900037fbb50 0000000000000010 ffffc900037fbbc8 ffffc900037fbb68
Aug  5 21:52:47 unRAID kernel: Call Trace:
Aug  5 21:52:47 unRAID kernel: [<ffffffff813a4a1b>] dump_stack+0x61/0x7e
Aug  5 21:52:47 unRAID kernel: [<ffffffff810cb5b1>] warn_alloc+0x102/0x116
Aug  5 21:52:47 unRAID kernel: [<ffffffff810cbb67>] __alloc_pages_nodemask+0x541/0xc71
Aug  5 21:52:47 unRAID kernel: [<ffffffff810c4d78>] ? __page_cache_alloc+0x89/0x9f
Aug  5 21:52:47 unRAID kernel: [<ffffffff810d0c59>] ? __do_page_cache_readahead+0xf1/0x21f
Aug  5 21:52:47 unRAID kernel: [<ffffffff81102d82>] alloc_pages_current+0xbe/0xe8
Aug  5 21:52:47 unRAID kernel: [<ffffffff810c4d78>] __page_cache_alloc+0x89/0x9f
Aug  5 21:52:47 unRAID kernel: [<ffffffff810c6971>] filemap_fault+0x23d/0x458
Aug  5 21:52:47 unRAID kernel: [<ffffffff810e8f38>] __do_fault+0x68/0xbb
Aug  5 21:52:47 unRAID kernel: [<ffffffff810edf55>] handle_mm_fault+0x6b1/0xf96
Aug  5 21:52:47 unRAID kernel: [<ffffffff81042252>] __do_page_fault+0x24a/0x3ed
Aug  5 21:52:47 unRAID kernel: [<ffffffff81042438>] do_page_fault+0x22/0x27
Aug  5 21:52:47 unRAID kernel: [<ffffffff81680f18>] page_fault+0x28/0x30
Aug  5 21:52:47 unRAID kernel: Mem-Info:
Aug  5 21:52:47 unRAID kernel: active_anon:544347 inactive_anon:4280 isolated_anon:0
Aug  5 21:52:47 unRAID kernel: active_file:2776096 inactive_file:556184 isolated_file:64
Aug  5 21:52:47 unRAID kernel: unevictable:0 dirty:549263 writeback:1161 unstable:0
Aug  5 21:52:47 unRAID kernel: slab_reclaimable:59359 slab_unreclaimable:36902
Aug  5 21:52:47 unRAID kernel: mapped:19104 shmem:109773 pagetables:5079 bounce:0
Aug  5 21:52:47 unRAID kernel: free:50809 free_pcp:0 free_cma:0
Aug  5 21:52:47 unRAID kernel: Node 0 active_anon:2177388kB inactive_anon:17120kB active_file:11104384kB inactive_file:2224736kB unevictable:0kB isolated(anon):0kB isolated(file):256kB mapped:76416kB dirty:2197052kB writeback:4644kB shmem:439092kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 950272kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no
Aug  5 21:52:47 unRAID kernel: Node 0 DMA free:15892kB min:132kB low:164kB high:196kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15976kB managed:15892kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Aug  5 21:52:47 unRAID kernel: lowmem_reserve[]: 0 2609 15785 15785
Aug  5 21:52:47 unRAID kernel: Node 0 DMA32 free:74956kB min:22320kB low:27900kB high:33480kB active_anon:369616kB inactive_anon:96kB active_file:1911428kB inactive_file:409868kB unevictable:0kB writepending:407484kB present:2832272kB managed:2822276kB mlocked:0kB slab_reclaimable:38480kB slab_unreclaimable:9904kB kernel_stack:1360kB pagetables:1168kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Aug  5 21:52:47 unRAID kernel: lowmem_reserve[]: 0 0 13176 13176
Aug  5 21:52:47 unRAID kernel: Node 0 Normal free:112388kB min:112712kB low:140888kB high:169064kB active_anon:1807772kB inactive_anon:17024kB active_file:9193200kB inactive_file:1814604kB unevictable:0kB writepending:1794212kB present:13762556kB managed:13493108kB mlocked:0kB slab_reclaimable:198956kB slab_unreclaimable:137704kB kernel_stack:14720kB pagetables:19148kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Aug  5 21:52:47 unRAID kernel: lowmem_reserve[]: 0 0 0 0
Aug  5 21:52:47 unRAID kernel: Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (U) 3*4096kB (M) = 15892kB
Aug  5 21:52:47 unRAID kernel: Node 0 DMA32: 5136*4kB (UME) 2462*8kB (UME) 526*16kB (UME) 218*32kB (UME) 57*64kB (UME) 37*128kB (UE) 19*256kB (UME) 5*512kB (U) 0*1024kB 2*2048kB (M) 0*4096kB = 75536kB
Aug  5 21:52:47 unRAID kernel: Node 0 Normal: 5217*4kB (UMEH) 2065*8kB (UMEH) 575*16kB (UMEH) 814*32kB (UMEH) 526*64kB (UMEH) 38*128kB (MEH) 3*256kB (E) 0*512kB 1*1024kB (E) 0*2048kB 0*4096kB = 112956kB
Aug  5 21:52:47 unRAID kernel: 3442409 total pagecache pages
Aug  5 21:52:47 unRAID kernel: 0 pages in swap cache
Aug  5 21:52:47 unRAID kernel: Swap cache stats: add 0, delete 0, find 0/0
Aug  5 21:52:47 unRAID kernel: Free swap  = 0kB
Aug  5 21:52:47 unRAID kernel: Total swap = 0kB
Aug  5 21:52:47 unRAID kernel: 4152701 pages RAM
Aug  5 21:52:47 unRAID kernel: 0 pages HighMem/MovableOnly
Aug  5 21:52:47 unRAID kernel: 69882 pages reserved

 

Do you have any idea what is causing the errors?

 

 

unraid-diagnostics-20170808-1305.zip

Edited by wisebear

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