[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
This fix is released for bionic and disco. Setting both as such. For some reason the SRU machinery didn't pick it to this LP bug. Bionic: ~/git/ubuntu-bionic$ git log --oneline origin/master -- drivers/md/bcache/ | grep 'bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached' 474349a526e5 bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached ~/git/ubuntu-bionic$ git describe --contains 474349a526e5 Ubuntu-4.15.0-59.66~816 Disco: ~/git/ubuntu-disco$ git log --oneline origin/master -- drivers/md/bcache/ | grep 'bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached' 41044186a4a5 bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached ~/git/ubuntu-disco$ git describe --contains 41044186a4a5 Ubuntu-5.0.0-26.27~543 ** Changed in: linux (Ubuntu Bionic) Status: In Progress => Fix Released -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Released Status in linux source package in Disco: Fix Released Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
This bug was fixed in the package linux - 5.0.0-27.28 --- linux (5.0.0-27.28) disco; urgency=medium * disco/linux: 5.0.0-27.28 -proposed tracker (LP: #1840816) * [Potential Regression] System crashes when running ftrace test in ubuntu_kernel_selftests (LP: #1840750) - x86/kprobes: Set instruction page as executable linux (5.0.0-26.27) disco; urgency=medium * disco/linux: 5.0.0-26.27 -proposed tracker (LP: #1839972) * Packaging resync (LP: #1786013) - [Packaging] update helper scripts * alsa/hdmi: add icelake hdmi audio support for a Dell machine (LP: #1836916) - ALSA: hda: hdmi - add Icelake support - ALSA: hda/hdmi - Remove duplicated define - ALSA: hda/hdmi - Fix i915 reverse port/pin mapping * input/mouse: alps trackpoint-only device doesn't work (LP: #1836752) - Input: alps - don't handle ALPS cs19 trackpoint-only device - Input: alps - fix a mismatch between a condition check and its comment * [18.04 FEAT] Enhanced hardware support (LP: #1836857) - s390: report new CPU capabilities - s390: add alignment hints to vector load and store * System does not auto detect disconnection of external monitor (LP: #1835001) - drm/i915: Add support for retrying hotplug - drm/i915: Enable hotplug retry * [18.04 FEAT] Enhanced CPU-MF hardware counters - kernel part (LP: #1836860) - s390/cpum_cf: Add support for CPU-MF SVN 6 - s390/cpumf: Add extended counter set definitions for model 8561 and 8562 * EeePC 1005px laptop backlight is off after system boot up (LP: #1837117) - platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi * br_netfilter: namespace sysctl operations (LP: #1836910) - netfilter: bridge: port sysctls to use brnf_net - netfilter: bridge: namespace bridge netfilter sysctls - netfilter: bridge: prevent UAF in brnf_exit_net() * ideapad_laptop disables WiFi/BT radios on Lenovo Y540 (LP: #1837136) - platform/x86: ideapad-laptop: Remove no_hw_rfkill_list * shiftfs: allow overlayfs (LP: #1838677) - SAUCE: shiftfs: enable overlayfs on shiftfs * bcache: bch_allocator_thread(): hung task timeout (LP: #1784665) - bcache: never writeback a discard operation - bcache: improve bcache_reboot() - SAUCE: bcache: fix deadlock in bcache_allocator * Regressions in CMA allocation rework (LP: #1839395) - dma-contiguous: do not overwrite align in dma_alloc_contiguous() - dma-contiguous: page-align the size in dma_free_contiguous() * CVE-2019-3900 - vhost: introduce vhost_exceeds_weight() - vhost_net: fix possible infinite loop - vhost: vsock: add weight support - vhost: scsi: add weight support * Disco update: 5.0.21 upstream stable release (LP: #1837518) - bonding/802.3ad: fix slave link initialization transition states - cxgb4: offload VLAN flows regardless of VLAN ethtype - inet: switch IP ID generator to siphash - ipv4/igmp: fix another memory leak in igmpv3_del_delrec() - ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST - ipv6: Consider sk_bound_dev_if when binding a raw socket to an address - ipv6: Fix redirect with VRF - llc: fix skb leak in llc_build_and_send_ui_pkt() - mlxsw: spectrum_acl: Avoid warning after identical rules insertion - net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT - net: fec: fix the clk mismatch in failed_reset path - net-gro: fix use-after-free read in napi_gro_frags() - net: mvneta: Fix err code path of probe - net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value - net: phy: marvell10g: report if the PHY fails to boot firmware - net: sched: don't use tc_action->order during action dump - net: stmmac: fix reset gpio free missing - r8169: fix MAC address being lost in PCI D3 - usbnet: fix kernel crash after disconnect - net/mlx5: Avoid double free in fs init error unwinding path - tipc: Avoid copying bytes beyond the supplied data - net/mlx5: Allocate root ns memory using kzalloc to match kfree - net/mlx5e: Disable rxhash when CQE compress is enabled - net: stmmac: fix ethtool flow control not able to get/set - net: stmmac: dma channel control register need to be init first - bnxt_en: Fix aggregation buffer leak under OOM condition. - bnxt_en: Fix possible BUG() condition when calling pci_disable_msix(). - bnxt_en: Reduce memory usage when running in kdump kernel. - net/tls: fix state removal with feature flags off - net/tls: don't ignore netdev notifications if no TLS features - cxgb4: Revert "cxgb4: Remove SGE_HOST_PAGE_SIZE dependency on page size" - net: correct zerocopy refcnt with udp MSG_MORE - crypto: vmx - ghash: do nosimd fallback manually - xen/pciback: Don't disable PCI_COMMAND on PCI device reset. - Revert "tipc: fix modprobe tipc failed after switch order of device registration" -
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Verification successful with bionic-proposed. No warning nor oops anymore. # uname -rv 4.15.0-59-generic #66-Ubuntu SMP Wed Aug 14 10:56:44 UTC 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 105.696881] bcache: register_bdev() registered backing device loop0 [ 105.703809] bcache: run_cache_set() invalidating existing data [ 105.714280] bcache: register_cache() registered cache device loop1 [ 109.677765] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 3fd195b5-7334-4759-81d9-0faadc042f59 # # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 21.645209] bcache: register_bdev() registered backing device loop0 [ 21.697858] bcache: run_cache_set() invalidating existing data [ 21.709142] bcache: register_cache() registered cache device loop1 # sleep 10 # ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: Fix Committed Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: Fix Committed Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Verification successful with disco-proposed. No warning nor oops anymore. # rmadison -s disco-proposed linux linux | 5.0.0-26.27 | disco-proposed | source # uname -rv 5.0.0-26-generic #27-Ubuntu SMP Tue Aug 13 17:47:39 UTC 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 171.879953] bcache: register_bdev() registered backing device loop0 [ 171.920116] bcache: run_cache_set() invalidating existing data [ 171.931843] bcache: register_cache() registered cache device loop1 [ 175.906911] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 18fa9221-da9c-4e69-8b23-6eb093030c30 # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 91.990987] bcache: register_bdev() registered backing device loop0 [ 94.001825] bcache: run_cache_set() invalidating existing data [ 94.018920] bcache: register_cache() registered cache device loop1 # sleep 10 # ** Tags removed: verification-needed-disco ** Tags added: verification-done-disco -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: Fix Committed Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-disco -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: Fix Committed Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
** Changed in: linux (Ubuntu Disco) Status: In Progress => Fix Committed -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: Fix Committed Status in linux source package in Eoan: Invalid Bug description: [Impact] * Users can get a Warning or even Oops the kernel if bcache/writeback_percent is set before attaching a caching device to the bcache device. * The fix is trivial, upstream, and consists of just checking whether the caching device is attached in order to set flags and schedule thread (which oops). [Test Case] * See attachment 'setup-bcache-wb_percent-before-attach.sh' used in comment #5 and #6 to reproduce the problem(s). * for 'Warning': # make-bcache -B # make-bcache -C # echo 11 > /sys/block//bcache/writeback_percent # sleep 1 # echo > /sys/block//bcache/attach * for 'Oops': (steps above, but don't run last command / 'attach'). [Regression Potential] * Low. The fix is trivial, contained, and exclusive to bcache sysfs handler. * The modified path has been exercised with synthetic testing (script). [Original Bug Description] See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Patches sent to the kernel-team mailing list: [B][PATCH] bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached https://lists.ubuntu.com/archives/kernel-team/2019-July/102653.html [D][PATCH] bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached https://lists.ubuntu.com/archives/kernel-team/2019-July/102654.html ** Description changed: + [Impact] + + * Users can get a Warning or even Oops the kernel if +bcache/writeback_percent is set before attaching a +caching device to the bcache device. + + * The fix is trivial, upstream, and consists of just +checking whether the caching device is attached in +order to set flags and schedule thread (which oops). + + [Test Case] + + * See attachment 'setup-bcache-wb_percent-before-attach.sh' +used in comment #5 and #6 to reproduce the problem(s). + + * for 'Warning': + +# make-bcache -B +# make-bcache -C +# echo 11 > /sys/block//bcache/writeback_percent +# sleep 1 +# echo > /sys/block//bcache/attach + + * for 'Oops': +(steps above, but don't run last command / 'attach'). + + [Regression Potential] + + * Low. The fix is trivial, contained, and exclusive to bcache sysfs + handler. + + * The modified path has been exercised with synthetic testing (script). + + [Original Bug Description] + See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR= - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR= + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: - linux-restricted-modules-4.15.0-54-generic N/A - linux-backports-modules-4.15.0-54-generic N/A - linux-firmware 1.173.9 + linux-restricted-modules-4.15.0-54-generic N/A + linux-backports-modules-4.15.0-54-generic N/A + linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro ** Changed in: linux (Ubuntu Bionic) Status: Confirmed => In Progress ** Changed in: linux (Ubuntu Disco) Status: Confirmed => In Progress -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: In Progress Status in linux source package in Disco: In Progress Status in
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Tested with disco-proposed + patch (problem does not happen) --- # uname -rv 5.0.0-22-generic #23+test20190725b1 SMP Mon Jul 29 14:43:55 -03 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 69.567775] bcache: register_bdev() registered backing device loop0/null 2>&1 [ 69.577141] bcache: run_cache_set() invalidating existing data [ 69.591172] bcache: register_cache() registered cache device loop1 [ 69.591517] bcache: register_bcache() error /dev/loop0: device already registered (emitting change event) [ 73.570620] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 0ed05289-ed85-40da-bcf4-3991f2e18e03 # (no warning message) # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 # [ 40.045968] bcache: register_bdev() registered backing device loop0ev/null 2>& [ 40.050914] bcache: run_cache_set() invalidating existing data [ 40.060793] bcache: register_cache() registered cache device loop1 [ 40.068735] bcache: register_bcache() error /dev/loop1: device already registered (wait a few seconds) (ok no oops anymore) -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux source package in Disco: Confirmed Status in linux source package in Eoan: Invalid Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Attaching test-case script. ** Attachment added: "setup-bcache-wb_percent-before-attach.sh" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+attachment/5279850/+files/setup-bcache-wb_percent-before-attach.sh -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux source package in Disco: Confirmed Status in linux source package in Eoan: Invalid Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Tested with bionic-proposed + patch (problem does not happen) --- Test kernel available in: https://people.canonical.com/~mfo/lp1837788/linux_4.15.0-56.62+test20190725b1_amd64/ # uname -rv 4.15.0-56-generic #62+test20190725b1 SMP Thu Jul 25 12:44:16 -03 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 # [ 61.772497] bcache: register_bdev() registered backing device loop0/null 2>&1 [ 61.789479] bcache: run_cache_set() invalidating existing data [ 61.799599] bcache: register_cache() registered cache device loop1 [ 65.772621] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 2c09c59b-35b1-4da7-8225-d143c1ea81d2 # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 # [ 36.853197] bcache: register_bdev() registered backing device loop0/null 2>&1 [ 36.885302] bcache: run_cache_set() invalidating existing data [ 36.896425] bcache: register_cache() registered cache device loop1 (wait a few seconds) (ok no oops anymore) -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux source package in Disco: Confirmed Status in linux source package in Eoan: Invalid Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
** Also affects: linux (Ubuntu Eoan) Importance: Undecided Assignee: Mauricio Faria de Oliveira (mfo) Status: Confirmed ** Also affects: linux (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Eoan) Status: Confirmed => Invalid ** Changed in: linux (Ubuntu Disco) Assignee: (unassigned) => Mauricio Faria de Oliveira (mfo) ** Changed in: linux (Ubuntu Bionic) Assignee: (unassigned) => Mauricio Faria de Oliveira (mfo) ** Changed in: linux (Ubuntu Bionic) Status: New => Confirmed ** Changed in: linux (Ubuntu Disco) Status: New => Confirmed -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux source package in Disco: Confirmed Status in linux source package in Eoan: Invalid Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Tested with eoan-proposed (problem does not exist) root@bionic-bcache:~# uname -rv 5.2.0-9-generic #10-Ubuntu SMP Sat Jul 20 14:05:52 UTC 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 54.032674] bcache: register_bdev() registered backing device loop0 [ 54.036972] bcache: run_cache_set() invalidating existing data [ 54.051598] bcache: register_cache() registered cache device loop1 [ 54.065354] bcache: register_bcache() error /dev/loop1: device already registered [ 58.038440] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set cae17283-45ee-4aa1-9fb1-00ad889c02e5 # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 28.140043] bcache: register_bdev() registered backing device loop0 [ 41.927908] bcache: bcache_device_free() bcache0 stopped [ 77.142936] bcache: register_bdev() registered backing device loop0 [ 77.160954] bcache: run_cache_set() invalidating existing data [ 77.172800] bcache: register_cache() registered cache device loop1 [ 77.172886] bcache: register_bcache() error /dev/loop0: device already registered (emitting change event) -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Confirmed Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Tested with disco-proposed (problem exists) - # uname -rv 5.0.0-22-generic #23-Ubuntu SMP Tue Jul 23 17:23:54 UTC 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 57.992319] bcache: register_bdev() registered backing device loop0/null 2>&1 [ 57.997331] bcache: run_cache_set() invalidating existing data [ 58.009201] bcache: register_cache() registered cache device loop1 [ 58.009232] bcache: register_bcache() error /dev/loop0: device already registered (emitting change event) [ 62.008954] WARNING: CPU: 2 PID: 1294 at drivers/md/bcache/writeback.c:837 bch_cached_dev_writeback_start+0x156/0x164 [bcache] [ 62.014280] Modules linked in: bcache crc64 isofs nls_iso8859_1 kvm_intel kvm irqbypass input_leds joydev serio_raw sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid$ 56 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear psmouse virtio_blk virtio$ net net_failover failover floppy [ 62.027201] CPU: 2 PID: 1294 Comm: setup-bcache-wb Not tainted 5.0.0-22-generic #23-Ubuntu [ 62.029611] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 62.032236] RIP: 0010:bch_cached_dev_writeback_start+0x156/0x164 [bcache] [ 62.034227] Code: 88 4c 0d 00 00 74 09 8b 83 e0 0c 00 00 5b 5d c3 48 8b 35 35 ee b6 e0 48 8d 93 08 0c 00 00 bf 00 20 00 00 e8 7c 81 3e d$ eb dd <0f> 0b e9 55 ff ff ff b8 f4 ff ff ff eb 8c 48 c7 c7 e0 e1 8c c0 e8 [ 62.039605] RSP: 0018:ae25012a3d38 EFLAGS: 00010207 [ 62.042135] RAX: 8ae1b1e915c0 RBX: 8ae1b20d RCX: [ 62.045616] RDX: RSI: 8ae1b7b270a0 RDI: 8ae1b7403800 [ 62.049086] RBP: ae25012a3d40 R08: 000270a0 R09: 9fcbc4cb [ 62.052583] R10: d2e708ce0bc0 R11: 0001 R12: 8ae1b20d0010 [ 62.056077] R13: 8ae1b20d R14: 8ae1b20d0c30 R15: 8ae1b218 [ 62.059568] FS: 7f1d4770e540() GS:8ae1b7b0() knlGS: [ 62.063629] CS: 0010 DS: ES: CR0: 80050033 [ 62.066534] CR2: 557518fb58f0 CR3: 0002333fa000 CR4: 06e0 [ 62.070048] Call Trace: [ 62.071530] bch_cached_dev_attach+0x356/0x480 [bcache] [ 62.074201] ? bch_keybuf_init+0x70/0x70 [bcache] [ 62.07] __cached_dev_store+0x59f/0x8b0 [bcache] [ 62.079234] bch_cached_dev_store+0x39/0xc0 [bcache] [ 62.081786] sysfs_kf_write+0x3b/0x40 [ 62.083785] kernfs_fop_write+0x12e/0x1b0 [ 62.085921] __vfs_write+0x1b/0x40 [ 62.087809] vfs_write+0xab/0x1b0 [ 62.089649] ksys_write+0x5c/0xd0 [ 62.091497] __x64_sys_write+0x1a/0x20 [ 62.093520] do_syscall_64+0x5a/0x110 [ 62.095523] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.098106] RIP: 0033:0x7f1d4720e154 [ 62.100071] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5 [ 62.108931] RSP: 002b:7ffddf05ed58 EFLAGS: 0246 ORIG_RAX: 0001 [ 62.112761] RAX: ffda RBX: 557518fb37f0 RCX: 7f1d4720e154 [ 62.116233] RDX: 0025 RSI: 557518fb37f0 RDI: 0001 [ 62.119751] RBP: 0025 R08: f000 R09: 557518fb594d [ 62.123233] R10: 01b6 R11: 0246 R12: 0001 [ 62.126711] R13: 0025 R14: 7fff R15: 7ffddf060f39 [ 62.130191] ---[ end trace c47ed79da668a296 ]--- [ 62.135336] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 7abc55ca-0c2d-44bb-ae1e-dd51a6028769 # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 # [ 30.327906] bcache: register_bdev() registered backing device loop0 [ 30.397705] bcache: run_cache_set() invalidating existing data [ 30.409402] bcache: register_cache() registered cache device loop1 (wait a few seconds) [ 38.603598] BUG: unable to handle kernel NULL pointer dereference at 0340 [ 38.607376] #PF error: [normal kernel read fault] [ 38.609705] PGD 0 P4D 0 [ 38.611045] Oops: [#1] SMP PTI [ 38.612835] CPU: 2 PID: 53 Comm: kworker/2:1 Not tainted 5.0.0-22-generic #23-Ubuntu [ 38.616264] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 38.618928] Workqueue: events update_writeback_rate [bcache] [ 38.620658] RIP: 0010:update_writeback_rate+0x36/0x330 [bcache] [ 38.622436] Code: 56 41 55 41 54 53 48 83 ec 08 4c 8b af 10 f4 ff ff f0 80 8f 30 f4 ff ff 10 f0 83 44 24 fc 00 48 8b 87 30 f4 ff ff a8 0$ 74 59 <49> 8b 85 40 03 00 00 48 c1 e8 03 83 e0 01 49 89 c4 75 46 8b 47 e8 [ 38.627822] RSP:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
Tested with bionic-proposed (problem exists) --- # uname -rv 4.15.0-56-generic #62-Ubuntu SMP Wed Jul 24 20:18:55 UTC 2019 # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 [ 39.096888] bcache: register_bdev() registered backing device loop0/null 2>&1 [ 39.109511] bcache: run_cache_set() invalidating existing data [ 39.121256] bcache: register_cache() registered cache device loop1 [ 43.083569] WARNING: CPU: 3 PID: 1207 at /build/linux-dHA1gi/linux-4.15.0/drivers/md/bcache/writeback.c:624 bch_cached_dev_writeback_sta$ t+0x13f/0x1b0 [bcache] [ 43.092279] Modules linked in: bcache isofs nls_iso8859_1 kvm_intel kvm irqbypass input_leds joydev serio_raw sch_fq_codel ib_iser rdma_$ m iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 as$ nc_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear psmouse virtio_blk virtio_net f$ oppy [ 43.107715] CPU: 3 PID: 1207 Comm: setup-bcache-wb Not tainted 4.15.0-56-generic #62-Ubuntu [ 43.08] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 43.114797] RIP: 0010:bch_cached_dev_writeback_start+0x13f/0x1b0 [bcache] [ 43.117589] RSP: 0018:bcb4c13a3d28 EFLAGS: 00010283 [ 43.119762] RAX: 9e8171f74080 RBX: 9e817261 RCX: [ 43.122664] RDX: RSI: 9e817fda70a0 RDI: 9e8177003800 [ 43.125572] RBP: bcb4c13a3d30 R08: 000270a0 R09: 826afc1d [ 43.128590] R10: R11: 0224 R12: 9e8172610010 [ 43.131574] R13: 9e817261 R14: 9e817206 R15: 9e8172610ac8 [ 43.134538] FS: 7f2bb42dc540() GS:9e817fd8() knlGS: [ 43.137983] CS: 0010 DS: ES: CR0: 80050033 [ 43.140430] CR2: 5608572738f0 CR3: 00023502 CR4: 06e0 [ 43.143389] Call Trace: [ 43.144575] bch_cached_dev_attach+0x335/0x4f0 [bcache] [ 43.146835] __cached_dev_store+0x749/0x7e0 [bcache] [ 43.148950] ? __cached_dev_store+0x749/0x7e0 [bcache] [ 43.151144] bch_cached_dev_store+0x39/0xc0 [bcache] [ 43.153266] sysfs_kf_write+0x3c/0x50 [ 43.154892] kernfs_fop_write+0x125/0x1a0 [ 43.156682] __vfs_write+0x1b/0x40 [ 43.158211] vfs_write+0xb1/0x1a0 [ 43.159710] SyS_write+0x55/0xc0 [ 43.161167] do_syscall_64+0x73/0x130 [ 43.162772] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 43.164891] RIP: 0033:0x7f2bb3ddc154 [ 43.166471] RSP: 002b:7fffaa0a1628 EFLAGS: 0246 ORIG_RAX: 0001 [ 43.169675] RAX: ffda RBX: 5608572717f0 RCX: 7f2bb3ddc154 [ 43.172573] RDX: 0025 RSI: 5608572717f0 RDI: 0001 [ 43.175461] RBP: 0025 R08: f000 R09: 56085727394d [ 43.178356] R10: 01b6 R11: 0246 R12: 0001 [ 43.180809] R13: 0025 R14: 7fff R15: 7fffaa0a2f39 [ 43.182978] Code: 0a 00 00 0f 88 85 00 00 00 75 18 48 8b 35 22 8f 4d c3 48 8d 93 a0 0a 00 00 bf 00 20 00 00 e8 49 16 f2 c1 8b 83 80 0b 00 00 eb a1 <0f> 0b e9 5c ff ff ff b8 f4 ff ff ff eb 93 49 8d 8c 24 88 0a 00 [ 43.188541] ---[ end trace 6c8b3c91f79be271 ]--- [ 43.191546] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on set 0bd9f71d-b21f-4b5b-b4e0-dbb4e1126138 # reboot # # comment last line in script. # ./setup-bcache-wb_percent-before-attach.sh >/dev/null 2>&1 # [ 62.048472] bcache: register_bdev() registered backing device loop0 [ 62.081965] bcache: run_cache_set() invalidating existing data [ 62.101912] bcache: register_cache() registered cache device loop1 (wait a few seconds) [ 70.108124] BUG: unable to handle kernel NULL pointer dereference at 0340 [ 70.112057] IP: update_writeback_rate+0x36/0x2d0 [bcache] [ 70.114648] PGD 0 P4D 0 [ 70.116007] Oops: [#1] SMP PTI [ 70.117768] Modules linked in: bcache isofs nls_iso8859_1 kvm_intel kvm irqbypass joydev input_leds serio_raw sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear psmouse virtio_blk virtio_net fl oppy [ 70.128731] CPU: 3 PID: 52 Comm: kworker/3:1 Not tainted 4.15.0-56-generic #62-Ubuntu [ 70.131046] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 70.133671] Workqueue: events update_writeback_rate [bcache] [ 70.135369] RIP: 0010:update_writeback_rate+0x36/0x2d0 [bcache] [ 70.137113] RSP: 0018:b88440e17e48 EFLAGS: 00010202 [ 70.138792] RAX: 0018 RBX: 9c50b2650b08 RCX: 9c50bfda2160 [ 70.140988] RDX: 9c50bfda2160 RSI: 00c0 RDI: 9c50b2650b08 [ 70.143194] RBP:
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
For reference, this is the Warning in the CurrentDmesg.txt file. [ 71.925684] WARNING: CPU: 8 PID: 2977 at /build/linux-jmOa1Y/linux-4.15.0/drivers/md/bcache/writeback.c:603 bch_cached_dev_writeback_start+0x13f/0x1af [bcache] [ 71.925686] Modules linked in: ebtable_filter ebtables ip6table_filter ip6_tables devlink iptable_filter nls_utf8 cifs ccm fscache bridge stp llc bonding nls_iso8859_1 intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm irqbypass ttm drm_kms_helper crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc drm fb_sys_fops syscopyarea sysfillrect sysimgblt aesni_intel mxm_wmi aes_x86_64 crypto_simd glue_helper uvcvideo cryptd snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core snd_hda_core videodev media intel_cstate snd_hwdep snd_pcm snd_timer snd intel_rapl_perf input_leds soundcore shpchp serio_raw ioatdma mei_me lpc_ich mei mac_hid wmi sch_fq_codel vhost_net vhost tap coretemp [ 71.925727] lp parport ip_tables x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear bcache raid1 hid_generic usbhid hid igb i2c_algo_bit dca firewire_ohci isci ahci ptp firewire_core libahci crc_itu_t libsas pps_core nvme scsi_transport_sas nvme_core [ 71.925751] CPU: 8 PID: 2977 Comm: bash Not tainted 4.15.0-54-generic #58-Ubuntu [ 71.925752] Hardware name: Supermicro X9DAi/X9DAi, BIOS 3.2 05/09/2015 [ 71.925759] RIP: 0010:bch_cached_dev_writeback_start+0x13f/0x1af [bcache] [ 71.925760] RSP: 0018:a784c96abd08 EFLAGS: 00010287 [ 71.925761] RAX: 967af8bfdb00 RBX: 967af366 RCX: [ 71.925762] RDX: RSI: 967aff2a70a0 RDI: 966aff407780 [ 71.925763] RBP: a784c96abd10 R08: 000270a0 R09: aecaf22d [ 71.925764] R10: R11: 024b R12: 967af3660010 [ 71.925765] R13: 967af366 R14: 967af432 R15: 967af3660ac8 [ 71.925767] FS: 7f7759f51740() GS:967aff28() knlGS: [ 71.925768] CS: 0010 DS: ES: CR0: 80050033 [ 71.925770] CR2: 7fff24052e08 CR3: 001ff4410001 CR4: 000626e0 [ 71.925771] Call Trace: [ 71.925781] bch_cached_dev_attach+0x34b/0x510 [bcache] [ 71.925787] ? kernfs_fop_write+0xcb/0x1a0 [ 71.925793] __cached_dev_store+0x5c1/0x6d0 [bcache] [ 71.925798] ? __cached_dev_store+0x5c1/0x6d0 [bcache] [ 71.925804] bch_cached_dev_store+0x39/0xc0 [bcache] [ 71.925806] sysfs_kf_write+0x3c/0x50 [ 71.925808] kernfs_fop_write+0x125/0x1a0 [ 71.925811] __vfs_write+0x1b/0x40 [ 71.925813] vfs_write+0xb1/0x1a0 [ 71.925814] SyS_write+0x55/0xc0 [ 71.925819] do_syscall_64+0x73/0x130 [ 71.925825] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 71.925826] RIP: 0033:0x7f775962b154 [ 71.925827] RSP: 002b:7fff76f6a788 EFLAGS: 0246 ORIG_RAX: 0001 [ 71.925829] RAX: ffda RBX: 0025 RCX: 7f775962b154 [ 71.925830] RDX: 0025 RSI: 55c6907e0140 RDI: 0001 [ 71.925831] RBP: 55c6907e0140 R08: 000a R09: 0024 [ 71.925832] R10: 000a R11: 0246 R12: 7f7759907760 [ 71.925833] R13: 0025 R14: 7f77599032a0 R15: 7f7759902760 [ 71.925834] Code: 0a 00 00 0f 88 84 00 00 00 75 18 48 8b 35 c2 13 e2 ef 48 8d 93 a0 0a 00 00 bf 00 20 00 00 e8 f9 a6 86 ee 8b 83 80 0b 00 00 eb a1 <0f> 0b e9 5c ff ff ff b8 f4 ff ff ff eb 93 49 8d 8c 24 88 0a 00 [ 71.925865] ---[ end trace b657ee904e9a8497 ]--- [ 71.925880] bcache: bch_cached_dev_attach() Caching md1 as bcache0 on set eb92c552-bd01-458a-994e-7f8760fd6342 -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Confirmed Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p',
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
This is the warning trigger line:
int bch_cached_dev_writeback_start(struct cached_dev *dc)
...
WARN_ON(test_and_set_bit(BCACHE_DEV_WB_RUNNING, >disk.flags));
...
This commit fixes this problem:
commit 1f0ffa67349c56ea54c03ccfd1e073c990e7411e
Author: Coly Li
Date: Mon Jun 10 06:13:35 2019 +0800
bcache: only set BCACHE_DEV_WB_RUNNING when cached device
attached
It is included in linux 5.2, so for now only Ubuntu Eoan has the fix;
I could reproduce the problem with Ubuntu Disco (5.0-based) kernel.
The problem can Oops the kernel (worse error) if the cache is not
attached soon (reproduced below).
I'll provide a test kernel with the fix soon.
Steps to reproduce:
--
With attach (last line in script):
$ sudo ./setup-bcache-wb_percent-before-attach.sh
...
[ 36.130659] WARNING: CPU: 2 PID: 1288 at
drivers/md/bcache/writeback.c:837 bch_cached_dev_writeback_start+0x156/0x164
[bcache]
...
[ 36.155742] RIP: 0010:bch_cached_dev_writeback_start+0x156/0x164 [bcache]
...
[ 36.182455] Call Trace:
[ 36.183387] bch_cached_dev_attach+0x356/0x480 [bcache]
[ 36.185104] ? bch_keybuf_init+0x70/0x70 [bcache]
[ 36.186653] __cached_dev_store+0x59f/0x8b0 [bcache]
[ 36.188274] bch_cached_dev_store+0x39/0xc0 [bcache]
[ 36.189887] sysfs_kf_write+0x3b/0x40
[ 36.191142] kernfs_fop_write+0x12e/0x1b0
[ 36.192502] __vfs_write+0x1b/0x40
[ 36.193686] vfs_write+0xab/0x1b0
[ 36.194842] ksys_write+0x5c/0xd0
[ 36.196026] __x64_sys_write+0x1a/0x20
[ 36.197296] do_syscall_64+0x5a/0x110
[ 36.198532] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 36.200158] RIP: 0033:0x7f69a1d09154
...
[ 36.222967] ---[ end trace ec65e906cd03afa6 ]---
[ 36.225017] bcache: bch_cached_dev_attach() Caching loop0 as bcache0 on
set 57322d7a-1421-4dfc-a8cb-9c7b4e60c50a
Without attach (last line in script):
in a few seconds:
$ sudo ./setup-bcache-wb_percent-before-attach.sh
...
[ 30.623677] BUG: unable to handle kernel NULL pointer dereference at
0340
[ 30.627527] #PF error: [normal kernel read fault]
[ 30.629825] PGD 0 P4D 0
[ 30.631194] Oops: [#1] SMP PTI
...
[ 30.638818] Workqueue: events update_writeback_rate [bcache]
[ 30.640543] RIP: 0010:update_writeback_rate+0x36/0x330 [bcache]
...
[ 30.668496] Call Trace:
[ 30.670003] ? __schedule+0x2d8/0x840
[ 30.671998] process_one_work+0x20f/0x410
[ 30.674163] worker_thread+0x34/0x400
[ 30.676160] kthread+0x120/0x140
[ 30.678014] ? process_one_work+0x410/0x410
[ 30.680238] ? __kthread_parkme+0x70/0x70
[ 30.682411] ret_from_fork+0x35/0x40
...
[ 30.704646] ---[ end trace 1bbc1b34c704f1c5 ]---
[ 30.707086] RIP: 0010:update_writeback_rate+0x36/0x330 [bcache]
Test script:
$ cat setup-bcache-wb_percent-before-attach.sh
#!/bin/sh
#set -ex
dmesg -C
echo 9 > /proc/sys/kernel/printk
FILE_BACKING=/backing.img
FILE_CACHING=/caching.img
dd if=/dev/zero of=$FILE_BACKING bs=1G seek=1 count=0
dd if=/dev/zero of=$FILE_CACHING bs=1G seek=1 count=0
dd if=/dev/zero of=$FILE_BACKING bs=1M count=1 conv=notrunc
dd if=/dev/zero of=$FILE_CACHING bs=1M count=1 conv=notrunc
LOOP_BACKING=$(losetup -f --show $FILE_BACKING)
LOOP_CACHING=$(losetup -f --show $FILE_CACHING)
make-bcache -B $LOOP_BACKING
make-bcache -C $LOOP_CACHING
sleep 3
CSET_UUID=$(bcache-super-show $LOOP_CACHING | awk '/cset\.uuid/ { print
$2 }')
# Change writeback_percent before attaching
echo 11 > /sys/block/$(basename $LOOP_BACKING)/bcache/writeback_percent
sleep 1
# Comment this line to Oops in a few seconds
echo $CSET_UUID > /sys/block/$(basename $LOOP_BACKING)/bcache/attach
--
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1837788
Title:
bcache kernel warning when attaching device
Status in linux package in Ubuntu:
Confirmed
Bug description:
See attached dmesg, each time this server is rebooted it emits a
concerning bcache warning.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-54-generic 4.15.0-54.58
ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18
Uname: Linux 4.15.0-54-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.15.0-54-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c',
'/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p',
'/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p',
'/dev/snd/controlC1',
[Kernel-packages] [Bug 1837788] Re: bcache kernel warning when attaching device
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Mauricio Faria de Oliveira (mfo) -- 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/1837788 Title: bcache kernel warning when attaching device Status in linux package in Ubuntu: Confirmed Bug description: See attached dmesg, each time this server is rebooted it emits a concerning bcache warning. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-54-generic 4.15.0-54.58 ProcVersionSignature: Ubuntu 4.15.0-54.58-generic 4.15.18 Uname: Linux 4.15.0-54-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-54-generic. AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D3c', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D3p', '/dev/snd/controlC1', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer': 'amixer' Date: Wed Jul 24 12:28:06 2019 InstallationDate: Installed on 2013-10-04 (2119 days ago) InstallationMedia: Ubuntu-Server 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: Supermicro X9DAi ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-54-generic root=UUID=8577302d-1f37-40a6-afcd-385beb26059f ro nomodeset elevator=deadline nvme_core.default_ps_max_latency_us=0 nopti noibrs noibpb RelatedPackageVersions: linux-restricted-modules-4.15.0-54-generic N/A linux-backports-modules-4.15.0-54-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (409 days ago) dmi.bios.date: 05/09/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X9DAi dmi.board.vendor: Supermicro dmi.board.version: 0123456789 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.2:bd05/09/2015:svnSupermicro:pnX9DAi:pvr0123456789:rvnSupermicro:rnX9DAi:rvr0123456789:cvnSupermicro:ct3:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: X9DAi dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837788/+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
