[Bug 1552551] Re: Dell CERC Adapter hangs temporarily until reset. REGRESSION

The task "linux (Ubuntu)" has expired because it has had no new comments or updates for more than three years. If this issue is still present in an Ubuntu LTS kernel still under active support, please reopen the bug and provide updated details. If this issue was reported against an Ubuntu kernel no longer under active support but the issue still exists in a currently supported Ubuntu kernel, please open a new bug against that kernel version and provide the updated details, with a reference link to the original bug. This action was performed by an automated process maintained by the Ubuntu Kernel Team. ** Tags added: kernel-autoclosed kernel-autoclosed-expired ** Changed in: linux (Ubuntu) Status: Triaged => Expired -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/1552551 Title: Dell CERC Adapter hangs temporarily until reset. REGRESSION Status in linux package in Ubuntu: Expired Bug description: The HD CERC SATA 1.5 RAID controller (PCI-64 slot) hangs regularly for 10-60 seconds until reset. The CERC card firmware is the newest I can find reference to: 4.1-0 [bld 7419]. The Dell Poweredge 1800 has newest BIOS (A07). All hardware has been tested thoroughly OK except possibly the APIC component (Serverset Northbridge?). The 14.04LTS with all updates (or not) works fine with a perfectly consistent throughput of 77MB/s (slowest HD=66MB/s), RAID5. 15.10 has the hangs of 10-60 seconds, AND with newest updates as of 26-FEB-2016. I have changed PCI interrupts around and moved card slots to minimize sharing and removed cards - repeatedly. All hard drives and cables have been thoroughly tested, but the drives are mixed: 1 of 66MB/s, 1 of 125 MB/s, and 3 of 100MB/s. The drives not only work perfectly in 14.04LTS, but all Windows versions and DOS/BIOS-INT 19 as well (0x13). I have tried all combinations of card RAID options Read ahead, Write cache, and other BIOS options. Relevant dmesg lines (these were consecutive): [ 1046.808027] aacraid: Host adapter abort request (4,0,0,0) [ 1046.808123] aacraid: Host adapter reset request. SCSI hang ? [ 1297.828038] aacraid: Host adapter abort request (4,0,0,0) [ 1297.828168] aacraid: Host adapter reset request. SCSI hang ? ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-16-generic 4.2.0-16.19 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperVersion: 1.365 CurrentDesktop: Unity Date: Thu Mar 3 05:08:57 2016 LiveMediaBuild: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb:  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Dell Computer Corporation PowerEdge 1800 ProcEnviron:  TERM=xterm-256color  PATH=(custom, no user)  XDG_RUNTIME_DIR=<set>  LANG=en_US.UTF-8  SHELL=/bin/bash ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=u15.10-64/casper/vmlinuz.efi file=u15.10-64/preseed/username.seed boot=casper netboot=nfs nfsroot=10.100.1.86:/data2/tftpboot/u15.10-64 initrd=u15.10-64/casper/initrd.lz ipv6.disable=1 net.ifnames=0 RelatedPackageVersions:  linux-restricted-modules-4.2.0-16-generic N/A  linux-backports-modules-4.2.0-16-generic N/A  linux-firmware 1.149 RfKill:  0: phy0: Wireless LAN   Soft blocked: no   Hard blocked: no SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/29/2006 dmi.bios.vendor: Dell Computer Corporation dmi.bios.version: A07 dmi.board.name: 0P8611 dmi.board.vendor: Dell Computer Corporation dmi.board.version: A04 dmi.chassis.type: 17 dmi.chassis.vendor: Dell Computer Corporation dmi.modalias: dmi:bvnDellComputerCorporation:bvrA07:bd09/29/2006:svnDellComputerCorporation:pnPowerEdge1800:pvr:rvnDellComputerCorporation:rn0P8611:rvrA04:cvnDellComputerCorporation:ct17:cvr: dmi.product.name: PowerEdge 1800 dmi.sys.vendor: Dell Computer Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552551/+subscriptions