September 23, 201510 yr I have not been able to figure out what if anything is causing this. From what I can find online when searching for this, it seems to appear in topics about running unraid within an esxi image or something. This is on a standalone machine. Sep 22 19:27:04 storage kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 Sep 22 19:27:04 storage kernel: IP: [<ffffffff811533e4>] __discard_prealloc+0x98/0xb3 Sep 22 19:27:04 storage kernel: PGD 5afb8067 PUD 5a97d067 PMD 0 Sep 22 19:27:04 storage kernel: Oops: 0002 [#1] PREEMPT SMP Sep 22 19:27:04 storage kernel: Modules linked in: xt_CHECKSUM iptable_mangle ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables kvm_amd kvm vhost_net vhost macvtap macvlan tun xt_nat veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_nat_ipv4 iptable_filter ip_tables nf_nat md_mod k8temp mvsas libsas scsi_transport_sas forcedeth pata_amd sata_nv asus_atk0110 acpi_cpufreq [last unloaded: md_mod] Sep 22 19:27:04 storage kernel: CPU: 0 PID: 14615 Comm: shfs Not tainted 4.1.5-unRAID #5 Sep 22 19:27:04 storage kernel: Hardware name: System manufacturer System Product Name/M2N-E, BIOS ASUS M2N-E ACPI BIOS Revision 1102 09/21/2007 Sep 22 19:27:04 storage kernel: task: ffff88007898baa0 ti: ffff880031cbc000 task.ti: ffff880031cbc000 Sep 22 19:27:04 storage kernel: RIP: 0010:[<ffffffff811533e4>] [<ffffffff811533e4>] __discard_prealloc+0x98/0xb3 Sep 22 19:27:04 storage kernel: RSP: 0018:ffff880031cbfaa8 EFLAGS: 00010246 Sep 22 19:27:04 storage kernel: RAX: ffff880003666128 RBX: ffff880003666100 RCX: 0000000000000000 Sep 22 19:27:04 storage kernel: RDX: 0000000000000000 RSI: ffff880003666100 RDI: ffff880031cbfc10 Sep 22 19:27:04 storage kernel: RBP: ffff880031cbfad8 R08: 0000000000001283 R09: 00000000001e99bf Sep 22 19:27:04 storage kernel: R10: 00000000ffffffff R11: ffff880043d14340 R12: ffff880031cbfc10 Sep 22 19:27:04 storage kernel: R13: ffff8800036661a0 R14: ffff880031cbfc10 R15: 0000000000000000 Sep 22 19:27:04 storage kernel: FS: 00002afbd8803700(0000) GS:ffff88007bc00000(0000) knlGS:0000000000000000 Sep 22 19:27:04 storage kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 22 19:27:04 storage kernel: CR2: 0000000000000008 CR3: 000000005a97f000 CR4: 00000000000006f0 Sep 22 19:27:04 storage kernel: Stack: Sep 22 19:27:04 storage kernel: ffff8800748ce600 ffff880031cbfc10 ffffc90000c83000 ffffc90000ca31e8 Sep 22 19:27:04 storage kernel: ffff880031cbfc10 ffff880075289800 ffff880031cbfb08 ffffffff81153463 Sep 22 19:27:04 storage kernel: ffff880031cbfc10 ffff88007898baa0 ffffc90000c83000 ffffc90000c83000 Sep 22 19:27:04 storage kernel: Call Trace: Sep 22 19:27:04 storage kernel: [<ffffffff81153463>] reiserfs_discard_all_prealloc+0x44/0x4e Sep 22 19:27:04 storage kernel: [<ffffffff8116fca4>] do_journal_end+0x4e7/0xc78 Sep 22 19:27:04 storage kernel: [<ffffffff81170994>] journal_end+0xae/0xb6 Sep 22 19:27:04 storage kernel: [<ffffffff81157eb8>] reiserfs_create+0x160/0x186 Sep 22 19:27:04 storage kernel: [<ffffffff8117349d>] ? reiserfs_permission+0x11/0x13 Sep 22 19:27:04 storage kernel: [<ffffffff81105aca>] vfs_create+0x64/0x9f Sep 22 19:27:04 storage kernel: [<ffffffff81107200>] do_last.isra.48+0x4e8/0xa07 Sep 22 19:27:04 storage kernel: [<ffffffff81110400>] ? __d_lookup+0x127/0x139 Sep 22 19:27:04 storage kernel: [<ffffffff81108401>] ? path_init+0x32a/0x340 Sep 22 19:27:04 storage kernel: [<ffffffff81108dd8>] path_openat+0x1db/0x513 Sep 22 19:27:04 storage kernel: [<ffffffff811161cf>] ? mntput+0x28/0x2a Sep 22 19:27:04 storage kernel: [<ffffffff81104ad2>] ? path_put+0x1a/0x1e Sep 22 19:27:04 storage kernel: [<ffffffff81109f9a>] do_filp_open+0x35/0x85 Sep 22 19:27:04 storage kernel: [<ffffffff8111421a>] ? __alloc_fd+0xe5/0xf6 Sep 22 19:27:04 storage kernel: [<ffffffff810fd108>] do_sys_open+0x148/0x1d7 Sep 22 19:27:04 storage kernel: [<ffffffff8110a290>] ? SyS_mkdirat+0x32/0xab Sep 22 19:27:04 storage kernel: [<ffffffff810fd1b0>] SyS_open+0x19/0x1b Sep 22 19:27:04 storage kernel: [<ffffffff81615c6e>] system_call_fastpath+0x12/0x71 Sep 22 19:27:04 storage kernel: Code: 1c 75 bb 0f 0b 85 c0 74 12 48 8b 93 e8 00 00 00 4c 89 ee 4c 89 e7 e8 be 6e 00 00 48 8b 4b 28 44 89 7b 1c 48 8d 43 28 48 8b 53 30 <48> 89 51 08 48 89 0a 48 89 43 28 48 89 43 30 58 5b 41 5c 41 5d Sep 22 19:27:04 storage kernel: RIP [<ffffffff811533e4>] __discard_prealloc+0x98/0xb3 Sep 22 19:27:04 storage kernel: RSP <ffff880031cbfaa8> Sep 22 19:27:04 storage kernel: CR2: 0000000000000008 Sep 22 19:27:04 storage kernel: ---[ end trace ba7e876c70ed13a0 ]---
September 23, 201510 yr I see a few modules I don't recognize from standard unRAID systems. I have to ask, is this a custom kernel? If so, I suspect some part of the build was not configured correctly. The other thing I notice is that this is a rather old board, ASUS M2N-E with 2007 BIOS. That's probably one of the problematic nForce 4 boards. You can *try* to find a newer BIOS for it, but I would trash it, if it *is* one of the nForce 4 boards.
September 23, 201510 yr Author Only plugin I had installed was Nerd Tools (http://lime-technology.com/forum/index.php?topic=37541.0). I have since removed it and am just running a reiserfsck --check on the drives as I saw that recommended in a bunch of other topics. Yes it's an older board. I suppose I should think about upgrading it. Other than Nerd Tools everything is 2 weeks fresh install of latest unraid 6. For now I've disabled VM's and removed all but the non-stock plugins. I'll see how tomorrow goes.
October 26, 201510 yr Author Made it 32 days uptime before the web and samba crashed again. I am unable to access any shares via windows or telnet cd /mnt/user/. Oct 26 02:01:30 storage logger: mover finished Oct 26 08:12:29 storage kernel: general protection fault: 0000 [#1] PREEMPT SMP Oct 26 08:12:29 storage kernel: Modules linked in: kvm_amd kvm xt_nat veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_nat_ipv4 iptable_filter ip_tables nf_nat md_mod mvsas k8temp libsas scsi_transport_sas forcedeth sata_nv pata_amd asus_atk0110 acpi_cpufreq [last unloaded: md_mod] Oct 26 08:12:29 storage kernel: CPU: 0 PID: 27905 Comm: shfs Not tainted 4.1.5-unRAID #5 Oct 26 08:12:29 storage kernel: Hardware name: System manufacturer System Product Name/M2N-E, BIOS ASUS M2N-E ACPI BIOS Revis ion 1102 09/21/2007 Oct 26 08:12:29 storage kernel: task: ffff880017ce53c0 ti: ffff880005abc000 task.ti: ffff880005abc000 Oct 26 08:12:29 storage kernel: RIP: 0010:[<ffffffff811533e4>] [<ffffffff811533e4>] __discard_prealloc+0x98/0xb3 Oct 26 08:12:29 storage kernel: RSP: 0018:ffff880005abfb68 EFLAGS: 00010246 Oct 26 08:12:29 storage kernel: RAX: ffff8800103e9e68 RBX: ffff8800103e9e40 RCX: 6411832257641b03 Oct 26 08:12:29 storage kernel: RDX: 8853cb68033c58a7 RSI: ffff8800103e9e40 RDI: ffff880005abfca8 Oct 26 08:12:29 storage kernel: RBP: ffff880005abfb98 R08: 0000000000001ad3 R09: 000000000004b971 Oct 26 08:12:29 storage kernel: R10: ffffffff00001001 R11: ffffffff81160b7d R12: ffff880005abfca8 Oct 26 08:12:29 storage kernel: R13: ffff8800103e9ee0 R14: ffff880005abfca8 R15: 0000000033218126 Oct 26 08:12:29 storage kernel: FS: 00002ba18843c700(0000) GS:ffff88007bc00000(0000) knlGS:0000000000000000 Oct 26 08:12:29 storage kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 26 08:12:29 storage kernel: CR2: 00002ba186dfd000 CR3: 000000007810d000 CR4: 00000000000006f0 Oct 26 08:12:29 storage kernel: Stack: Oct 26 08:12:29 storage kernel: ffff8800750ce200 ffff880005abfca8 ffffc90000b14000 ffffc90000b341e8 Oct 26 08:12:29 storage kernel: ffff880005abfca8 ffff8800748d9800 ffff880005abfbc8 ffffffff81153463 Oct 26 08:12:29 storage kernel: ffff880005abfca8 ffff880017ce53c0 ffffc90000b14000 ffffc90000b14000 Oct 26 08:12:29 storage kernel: Call Trace: Oct 26 08:12:29 storage kernel: [<ffffffff81153463>] reiserfs_discard_all_prealloc+0x44/0x4e Oct 26 08:12:29 storage kernel: [<ffffffff8116fca4>] do_journal_end+0x4e7/0xc78 Oct 26 08:12:29 storage kernel: [<ffffffff81170994>] journal_end+0xae/0xb6 Oct 26 08:12:29 storage kernel: [<ffffffff81157208>] reiserfs_unlink+0x1de/0x23f Oct 26 08:12:29 storage kernel: [<ffffffff81105e6f>] vfs_unlink+0xc5/0x165 Oct 26 08:12:29 storage kernel: [<ffffffff81109c1f>] do_unlinkat+0x107/0x24c Oct 26 08:12:29 storage kernel: [<ffffffff8110150f>] ? SyS_newlstat+0x25/0x2e Oct 26 08:12:29 storage kernel: [<ffffffff8110a36c>] SyS_unlink+0x11/0x13 Oct 26 08:12:29 storage kernel: [<ffffffff81615c6e>] system_call_fastpath+0x12/0x71 Oct 26 08:12:29 storage kernel: Code: 1c 75 bb 0f 0b 85 c0 74 12 48 8b 93 e8 00 00 00 4c 89 ee 4c 89 e7 e8 be 6e 00 00 48 8b 4b 28 44 89 7b 1c 48 8d 43 28 48 8b 53 30 <48> 89 51 08 48 89 0a 48 89 43 28 48 89 43 30 58 5b 41 5c 41 5d Oct 26 08:12:29 storage kernel: RIP [<ffffffff811533e4>] __discard_prealloc+0x98/0xb3 Oct 26 08:12:29 storage kernel: RSP <ffff880005abfb68> Oct 26 08:12:29 storage kernel: ---[ end trace bc43e0cea6afb5a4 ]--- Oct 26 13:12:30 storage kernel: mdcmd (74): spindown 4 Oct 26 13:12:56 storage emhttp: shcmd (289): /usr/sbin/hdparm -y /dev/sda &> /dev/null Oct 26 14:00:02 storage kernel: mdcmd (75): spindown 3 The machine is still running in it's current state. I can telnet into it but that is it. Is there anyway to recover this without hard shutting down?
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