I tried to follow the directions of https://wiki.ubuntu.com/KernelTeam/Netconsole/Early to add early netconsole support to the kernel's initramfs but did not see any signs of this operation succeeded. Had to manually modprobe netconsole with all necessary parameters after the system bootup. Also I noticed that some intermediate kernel stacks recorded in local journalctl were lost to the remote host. Probably because they were sent at 1Gbit/sec and received only at 100Mbit, and my switch is just a simple D-Link DGS-1100-08 without enough storage for multi-packet queues. Or should I increase receive buffer on my RaspberryPi ModelB rsyslog ?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1871430 Title: iwlwifi/iwlmvm & Intel 9260 [8086:2526] subsystem [8086:0014] made kernel unstable since 4.15.0-91 Status in linux package in Ubuntu: Incomplete Bug description: My home server/router/access point runs under Ubuntu 18.04.4 with all updates and has 2 wifi adapters operated by hostapd one is USB AR9271 (0cf3:9271, driver ath9k_htc), another is PCIe Intel AC 9260 (8086:2526, driver iwlwifi). with kernel 4.15.0-88 it worked quite stable, with reboots required mostly after kernel upgrades (much less frequent reboots due to panics) with kernel 4.15.0-91 and -96 it started rebooting by itself by panic when a lot of activity happening via Intel 9260. In /etc/sysctl* I have kernel.panic=10 , kernel.softlockup_panic=1 and kernel.panic_on_oops=1 overrides of default values. In dmesg logs preceding the reboot, I see multiple warnings with stacks inside iwl_mvm functions which I could provide by apport. Also, multiple messages like "Command LQ_CMD: a command is already active!" or "Error sending LQ_CMD: time out after 2000ms" Unfortunately I run this box headless and I don't have another wired Ethernet host to capture its panics by netconsole The rest of hardware is pretty standard. Asus B85M-G mobo, Core i3-4130T CPU, nothing overly special. More details I would provide in your further requests but the current kernel behavior is very annoying. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D2c', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D10p', '/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 HibernationDevice: #RESUME=UUID=f7bcdeb1-6c61-4012-81c4-a43a492ffb6e InstallationDate: Installed on 2009-11-01 (3810 days ago) InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MachineType: ASUS All Series Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-96-generic root=/dev/mapper/vg00-root64 ro rootflags=commit=3600 rootflags=commit=3600 loop.max_part=63 ProcVersionSignature: Ubuntu 4.15.0-96.97-generic 4.15.18 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.15.0-96-generic N/A linux-backports-modules-4.15.0-96-generic N/A linux-firmware 1.173.17 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic Uname: Linux 4.15.0-96-generic x86_64 UpgradeStatus: Upgraded to bionic on 2010-10-11 (3466 days ago) UserGroups: adm admin audio cdrom dialout dip disk dos fuse jabber kvm libvirt libvirtd lpadmin plugdev proxy pulse pulse-access sambashare src _MarkForUpload: True dmi.bios.date: 07/22/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2501 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B85M-G dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2501:bd07/22/2015:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnB85M-G:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: ASUS MB dmi.product.name: All Series dmi.product.version: System Version dmi.sys.vendor: ASUS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1871430/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
