July 17, 201510 yr First I had a corrupt btrfs docker image. I recreated this and re-added my docker containers. So far so good. However every time my server crashes. The problem lies with the Plex docker. Whenever the Plex docker crashes I can still access the Unraid Webui, however stopping the plex docker results in an unresponsive Webui, and a according to the docker ps command still running Plex docker. Normally I proceed by killing the docker daemon (rc.docker) which reinstates the Webui, although not this time. Only solution became a hard reset. Any help or indication on how to prevent/fix the problem is much appreciated. Excerpt from syslog below, full syslog attached: Jul 17 18:59:01 Phoenix kernel: general protection fault: 0000 [#1] PREEMPT SMP Jul 17 18:59:01 Phoenix kernel: Modules linked in: veth xt_nat md_mod iptable_filter kvm ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_nat_ipv4 nf_nat ip_tables tun k10temp pata_atiixp i2c_piix4 r8169 ahci mii libahci asus_atk0110 acpi_cpufreq [last unloaded: md_mod] Jul 17 18:59:01 Phoenix kernel: CPU: 0 PID: 5943 Comm: Plex Media Serv Tainted: G W 4.0.4-unRAID #5 Jul 17 18:59:01 Phoenix kernel: Hardware name: System manufacturer System Product Name/M4A78-VM, BIOS 1601 10/15/2009 Jul 17 18:59:01 Phoenix kernel: task: ffff88004860b1e0 ti: ffff88011a934000 task.ti: ffff88011a934000 Jul 17 18:59:01 Phoenix kernel: RIP: 0010:[<ffffffff810ab21e>] [<ffffffff810ab21e>] find_get_entry+0x41/0x7d Jul 17 18:59:01 Phoenix kernel: RSP: 0018:ffff88011a937cd8 EFLAGS: 00010246 Jul 17 18:59:01 Phoenix kernel: RAX: ffff880019f97b10 RBX: ff00000000000000 RCX: 00000000fffffffa Jul 17 18:59:01 Phoenix kernel: RDX: ffff880019f97b10 RSI: ffff880019f97b10 RDI: 0000000000000000 Jul 17 18:59:01 Phoenix kernel: RBP: ffff88011a937cf8 R08: ffff880019f97908 R09: ffff88011a937cc0 Jul 17 18:59:01 Phoenix kernel: R10: 0000000000000040 R11: 0000000000000293 R12: 000000000003507c Jul 17 18:59:01 Phoenix kernel: R13: ffff880083b88158 R14: ffff880083b88150 R15: 000000000003507c Jul 17 18:59:01 Phoenix kernel: FS: 00002b335cc01700(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000 Jul 17 18:59:01 Phoenix kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jul 17 18:59:01 Phoenix kernel: CR2: 00002b3362c38000 CR3: 00000001042ee000 CR4: 00000000000007f0 Jul 17 18:59:01 Phoenix kernel: Stack: Jul 17 18:59:01 Phoenix kernel: 0000000000000000 000000000003507c 0000000000000000 0000000000000000 Jul 17 18:59:01 Phoenix kernel: ffff88011a937d48 ffffffff810ab9f1 ffff88010cd0a000 0000000000001000 Jul 17 18:59:01 Phoenix kernel: 00002b3360962493 000000000003507c ffff88000add7200 0000000000001397 Jul 17 18:59:01 Phoenix kernel: Call Trace: Jul 17 18:59:01 Phoenix kernel: [<ffffffff810ab9f1>] pagecache_get_page+0x28/0x153 Jul 17 18:59:01 Phoenix kernel: [<ffffffff810ac3b0>] generic_file_read_iter+0x176/0x555 Jul 17 18:59:01 Phoenix kernel: [<ffffffff812379f7>] fuse_file_read_iter+0x58/0x5d Jul 17 18:59:01 Phoenix kernel: [<ffffffff810f76ef>] new_sync_read+0x78/0x9c Jul 17 18:59:01 Phoenix kernel: [<ffffffff810f8094>] __vfs_read+0x14/0x3b Jul 17 18:59:01 Phoenix kernel: [<ffffffff810f813f>] vfs_read+0x84/0x11e Jul 17 18:59:01 Phoenix kernel: [<ffffffff810f821b>] SyS_read+0x42/0x86 Jul 17 18:59:01 Phoenix kernel: [<ffffffff81604e09>] system_call_fastpath+0x12/0x17 Jul 17 18:59:01 Phoenix kernel: Code: 29 e2 fc ff 4c 89 e6 4c 89 ef e8 af 12 2c 00 48 85 c0 48 89 c6 74 2d 48 8b 18 48 85 db 74 38 f6 c3 03 74 07 f6 c3 01 74 2e eb d9 <8b> 53 1c 85 d2 74 d2 8d 7a 01 89 d0 f0 0f b1 7b 1c 39 d0 74 08 Jul 17 18:59:01 Phoenix kernel: RIP [<ffffffff810ab21e>] find_get_entry+0x41/0x7d Jul 17 18:59:01 Phoenix kernel: RSP <ffff88011a937cd8> Jul 17 18:59:01 Phoenix kernel: ---[ end trace 8e0c4bfaef2b5b09 ]--- syslog-plex-crash.zip
July 17, 201510 yr Community Expert Boot in SAFE mode. Go to Tools - Diagnostics and post result. I am moving this to General Support since it is not really a Defect Report.
July 19, 201510 yr Author Booted into SAFE mode, attached the diagnostics zip-file. phoenix-diagnostics-20150719-1417.zip
July 22, 201510 yr Author Been running okay so far. Really think it could be a plugin or installed package?
July 23, 201510 yr Author Spoke too soon. Here's another crash. Had to connect monitor, since it totally unresponsive.
July 23, 201510 yr Author Did that a week ago, let it run for more than 25 hours. Didn't find anything. I reckon it's probably old or faulty hardware, but no clue what it might be myself.
July 23, 201510 yr Oh the jiffies. I was having that cpu stall issue a few months back. It happened 5 or 6 times over a 2 week period. It was annoying because the server would hard crash. I suspected it was Plex related, but wasn't sure. At the time I was on beta 5a, wasn't using docker, Plex was running in a xen ubuntu vm. I then updated to a more recent beta, moved Plex to docker and haven't had the issue since then. Here's my thread from back then: http://lime-technology.com/forum/index.php?topic=38119.0 Are you using xen by the way? And are you on the latest plexpass version? Because a bunch of people had that issue back then but i haven't seen any reports recently. I thought the underlying problem was somehow fixed either by an update to kernel, or software or by people stopping using xen, etc.
July 23, 201510 yr Author I'm not using Xen, and running the latest unraid version with a couple of dockers (Transmission, Plex, Sickrage, CP). I'll take a look at the thread, maybe there's something in there.
July 28, 201510 yr Author Still having trouble, this time it crashed just by adding a torrent into transmission webui. It started okay, but after about 5 min. This happens...(see picture) Help much appreciated!
July 30, 201510 yr Author See Check Disk Filesystems in my sig. Was just reading another post about kernel panics in which you suggested the same. It's def on my agenda for this weekend! Thanks. I'll report back later...
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