March 17, 20188 yr Hi, i just noticed my speed is only 10-11mb/s so i looked the log up, and found this: Quote Mar 17 14:04:00 Unraid-Server kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050Mar 17 14:04:00 Unraid-Server kernel: IP: dvb_frontend_open+0x3e/0x3f4 [dvb_core]Mar 17 14:04:00 Unraid-Server kernel: PGD 0 P4D 0 Mar 17 14:04:00 Unraid-Server kernel: Oops: 0000 [#2] PREEMPT SMP PTIMar 17 14:04:00 Unraid-Server kernel: Modules linked in: xt_CHECKSUM iptable_mangle ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables ip6table_filter ip6_tables vhost_net tun vhost tap macvlan xt_nat veth ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables nf_nat xfs md_mod nct6775 hwmon_vid em28xx_rc a8293 ts2020 m88ds3103 i2c_mux regmap_i2c em28xx_dvb dvb_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_cstate em28xx tveeprom v4l2_common videodev input_leds intel_uncore led_class i2c_i801 intel_rapl_perf media mpt3sas i2c_core ahci r8169 libahci video mii backlight raid_class button scsi_transport_sasMar 17 14:04:00 Unraid-Server kernel: CPU: 3 PID: 29332 Comm: tvh:mtimer Tainted: G D 4.14.25-unRAID #1Mar 17 14:04:00 Unraid-Server kernel: Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./H81 Pro BTC, BIOS P2.30 03/22/2016Mar 17 14:04:00 Unraid-Server kernel: task: ffff880005474600 task.stack: ffffc90002134000Mar 17 14:04:00 Unraid-Server kernel: RIP: 0010:dvb_frontend_open+0x3e/0x3f4 [dvb_core]Mar 17 14:04:00 Unraid-Server kernel: RSP: 0018:ffffc90002137c10 EFLAGS: 00010293Mar 17 14:04:00 Unraid-Server kernel: RAX: 0000000000000000 RBX: ffff8800096a1108 RCX: 0000000000000003Mar 17 14:04:00 Unraid-Server kernel: RDX: ffffffffa012eb75 RSI: ffff880317746100 RDI: ffff8800055ac320Mar 17 14:04:00 Unraid-Server kernel: RBP: 0000000000000000 R08: 0000000000000006 R09: 00000000fffffff8Mar 17 14:04:00 Unraid-Server kernel: R10: 0000000000000000 R11: 00000000d4117876 R12: ffff880409f49600Mar 17 14:04:00 Unraid-Server kernel: R13: ffff8800096a1428 R14: ffff880317746100 R15: 00000000ffffffedMar 17 14:04:00 Unraid-Server kernel: FS: 000014f7fd42fae8(0000) GS:ffff88041f380000(0000) knlGS:0000000000000000Mar 17 14:04:00 Unraid-Server kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033Mar 17 14:04:00 Unraid-Server kernel: CR2: 0000000000000050 CR3: 00000000061b0003 CR4: 00000000001606e0Mar 17 14:04:00 Unraid-Server kernel: Call Trace:Mar 17 14:04:00 Unraid-Server kernel: dvb_device_open+0x8c/0xd3 [dvb_core]Mar 17 14:04:00 Unraid-Server kernel: chrdev_open+0x13d/0x15bMar 17 14:04:00 Unraid-Server kernel: ? cdev_put+0x19/0x19Mar 17 14:04:00 Unraid-Server kernel: do_dentry_open.isra.1+0x18e/0x27dMar 17 14:04:00 Unraid-Server kernel: path_openat+0xa64/0xbecMar 17 14:04:00 Unraid-Server kernel: do_filp_open+0x48/0x9eMar 17 14:04:00 Unraid-Server kernel: ? do_sys_open+0x129/0x1b0Mar 17 14:04:00 Unraid-Server kernel: do_sys_open+0x129/0x1b0Mar 17 14:04:00 Unraid-Server kernel: do_syscall_64+0xfe/0x107Mar 17 14:04:00 Unraid-Server kernel: entry_SYSCALL_64_after_hwframe+0x3d/0xa2Mar 17 14:04:00 Unraid-Server kernel: RIP: 0033:0x14f80775ef33Mar 17 14:04:00 Unraid-Server kernel: RSP: 002b:000014f7fd42db48 EFLAGS: 00000246 ORIG_RAX: 0000000000000002Mar 17 14:04:00 Unraid-Server kernel: RAX: ffffffffffffffda RBX: 000014f7fd42fae8 RCX: 000014f80775ef33Mar 17 14:04:00 Unraid-Server kernel: RDX: 0000000000000000 RSI: 0000000000000802 RDI: 0000557ea47925a0Mar 17 14:04:00 Unraid-Server kernel: RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000Mar 17 14:04:00 Unraid-Server kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000Mar 17 14:04:00 Unraid-Server kernel: R13: 0000557ea473d100 R14: 000000000014a71c R15: 0000557ea473d100Mar 17 14:04:00 Unraid-Server kernel: Code: 20 4c 8b a6 c0 00 00 00 49 8b 9c 24 90 00 00 00 83 bb 14 05 00 00 02 4c 8b ab 28 03 00 00 48 8b ab 10 03 00 00 0f 84 a4 03 00 00 <83> 7d 50 00 48 89 34 24 48 89 7c 24 08 0f 84 dc 00 00 00 4c 8d Mar 17 14:04:00 Unraid-Server kernel: RIP: dvb_frontend_open+0x3e/0x3f4 [dvb_core] RSP: ffffc90002137c10Mar 17 14:04:00 Unraid-Server kernel: CR2: 0000000000000050Mar 17 14:04:00 Unraid-Server kernel: ---[ end trace e6290c8012d9363f ]--- unraid-server-diagnostics-20180317-1407.zip Edited March 17, 20188 yr by trurl Moved from Defect Reports since it isn't stock unRAID
March 17, 20188 yr Author Seems to be known linux bug?! https://www.thomas-krenn.com/de/wiki/BUG_unable_to_handle_kernel_NULL_pointer_dereference_at_0000000000000304_beheben
March 17, 20188 yr This doesn't look like a Defect Report (see guidelines sticky), and it also looks like you may be running the DVB version of unRAID, so even if it was a defect, it wouldn't be an unRAID defect unless you could reproduce it with stock unRAID. I will probably move this thread unless you edit the post to make it a defect report about stock unRAID.
March 17, 20188 yr Author Hi, yes its the latest dvb version libreelec, i didnt know this makes a difference. Could you move it to correct thread?
March 17, 20188 yr Hi, yes its the latest dvb version libreelec, i didnt know this makes a difference. Could you move it to correct thread?There's going to be nothing I can do about this. Suggest use stock and see if it resolves the issue. If it does then you've got two choices.EitherDowngrade to a DVB build without the issue or run current stock and see if the issue persists with the next release.Sent from my LG-H815 using Tapatalk
March 17, 20188 yr Author I guess best is remove DVB and forget it. Its a shame that its "working" so baldy in 2018 (atleast the way i want to use it)
March 17, 20188 yr I guess best is remove DVB and forget it. Its a shame that its "working" so baldy in 2018 [emoji20] (atleast the way i want to use it)DVB works fine as long as you pick your hardware carefully.Sent from my LG-H815 using Tapatalk
March 17, 20188 yr Author No, or yes, i dont have hardware issues, its the software. I want 1 or 2 times a year TV streaming over plex (while on holiday). Plex integration is horror. Project seems dead to me.
March 17, 20188 yr Or use a network based DVB device that doesnt require device drivers in the kernel.
March 17, 20188 yr No, or yes, i dont have hardware issues, its the software. I want 1 or 2 times a year TV streaming over plex (while on holiday). Plex integration is horror. Project seems dead to me.Well, yeah, Plex is a different matter. That is abysmal. I've been using DVB for the last 7-8 years, mostly on Linux since v5 of Unraid with TVheadend and it has been reliable. Occasionally you get the odd issue same with any software, but no complaints.Sent from my LG-H815 using Tapatalk
March 17, 20188 yr Author Yeah im sure i could run other software instead of plex, but that was the whol ereason for it, to have verything in on app
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