Is this also fixed in bionic yet? On Tue, Apr 3, 2018 at 9:10 AM, Launchpad Bug Tracker <1729...@bugs.launchpad.net> wrote: > This bug was fixed in the package linux - 4.13.0-38.43 > > --------------- > linux (4.13.0-38.43) artful; urgency=medium > > * linux: 4.13.0-38.43 -proposed tracker (LP: #1755762) > > * Servers going OOM after updating kernel from 4.10 to 4.13 (LP: #1748408) > - i40e: Fix memory leak related filter programming status > - i40e: Add programming descriptors to cleaned_count > > * [SRU] Lenovo E41 Mic mute hotkey is not responding (LP: #1753347) > - platform/x86: ideapad-laptop: Increase timeout to wait for EC answer > > * fails to dump with latest kpti fixes (LP: #1750021) > - kdump: write correct address of mem_section into vmcoreinfo > > * headset mic can't be detected on two Dell machines (LP: #1748807) > - ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289 > - ALSA: hda - Fix headset mic detection problem for two Dell machines > - ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines > > * CIFS SMB2/SMB3 does not work for domain based DFS (LP: #1747572) > - CIFS: make IPC a regular tcon > - CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl > - CIFS: dump IPC tcon in debug proc file > > * i2c-thunderx: erroneous error message "unhandled state: 0" (LP: #1754076) > - i2c: octeon: Prevent error message on bus error > > * hisi_sas: Add disk LED support (LP: #1752695) > - scsi: hisi_sas: directly attached disk LED feature for v2 hw > > * EDAC, sb_edac: Backport 1 patch to Ubuntu 17.10 (Fix missing DIMM sysfs > entries with KNL SNC2/SNC4 mode) (LP: #1743856) > - EDAC, sb_edac: Fix missing DIMM sysfs entries with KNL SNC2/SNC4 mode > > * [regression] Colour banding and artefacts appear system-wide on an Asus > Zenbook UX303LA with Intel HD 4400 graphics (LP: #1749420) > - drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA > > * DVB Card with SAA7146 chipset not working (LP: #1742316) > - vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems > > * [Asus UX360UA] battery status in unity-panel is not changing when battery > is > being charged (LP: #1661876) // AC adapter status not detected on Asus > ZenBook UX410UAK (LP: #1745032) > - ACPI / battery: Add quirk for Asus UX360UA and UX410UAK > > * ASUS UX305LA - Battery state not detected correctly (LP: #1482390) > - ACPI / battery: Add quirk for Asus GL502VSK and UX305LA > > * support thunderx2 vendor pmu events (LP: #1747523) > - perf pmu: Extract function to get JSON alias map > - perf pmu: Pass pmu as a parameter to get_cpuid_str() > - perf tools arm64: Add support for get_cpuid_str function. > - perf pmu: Add helper function is_pmu_core to detect PMU CORE devices > - perf vendor events arm64: Add ThunderX2 implementation defined pmu core > events > - perf pmu: Add check for valid cpuid in perf_pmu__find_map() > > * lpfc.ko module doesn't work (LP: #1746970) > - scsi: lpfc: Fix loop mode target discovery > > * Ubuntu 17.10 crashes on vmalloc.c (LP: #1739498) > - powerpc/mm/book3s64: Make KERN_IO_START a variable > - powerpc/mm/slb: Move comment next to the code it's referring to > - powerpc/mm/hash64: Make vmalloc 56T on hash > > * ethtool -p fails to light NIC LED on HiSilicon D05 systems (LP: #1748567) > - net: hns: add ACPI mode support for ethtool -p > > * CVE-2017-17807 > - KEYS: add missing permission check for request_key() destination > > * [Artful SRU] Fix capsule update regression (LP: #1746019) > - efi/capsule-loader: Reinstate virtual capsule mapping > > * [Artful/Bionic] [Config] enable EDAC_GHES for ARM64 (LP: #1747746) > - Ubuntu: [Config] enable EDAC_GHES for ARM64 > > * linux-tools: perf incorrectly linking libbfd (LP: #1748922) > - SAUCE: tools -- add ability to disable libbfd > - [Packaging] correct disablement of libbfd > > * Cherry pick c96f5471ce7d for delayacct fix (LP: #1747769) > - delayacct: Account blkio completion on the correct task > > * Error in CPU frequency reporting when nominal and min pstates are same > (cpufreq) (LP: #1746174) > - cpufreq: powernv: Dont assume distinct pstate values for nominal and > pmin > > * retpoline abi files are empty on i386 (LP: #1751021) > - [Packaging] retpoline-extract -- instantiate retpoline files for i386 > - [Packaging] final-checks -- sanity checking ABI contents > - [Packaging] final-checks -- check for empty retpoline files > > * [P9,Power NV][WSP][Ubuntu 1804] : "Kernel access of bad area " when > grouping > different pmu events using perf fuzzer . (perf:) (LP: #1746225) > - powerpc/perf: Fix oops when grouping different pmu events > > * bnx2x_attn_int_deasserted3:4323 MC assert! (LP: #1715519) // > CVE-2018-1000026 > - net: create skb_gso_validate_mac_len() > - bnx2x: disable GSO where gso_size is too big for hardware > > * Ubuntu16.04.03: ISAv3 initialize MMU registers before setting partition > table (LP: #1736145) > - powerpc/64s: Initialize ISAv3 MMU registers before setting partition > table > > * powerpc/powernv: Flush console before platform error reboot (LP: #1735159) > - powerpc/powernv: Flush console before platform error reboot > > * Touchpad stops working after a few seconds in Lenovo ideapad 320 > (LP: #1732056) > - pinctrl/amd: fix masking of GPIO interrupts > > * [Artful][Wyse 3040] System hang when trying to enable an offlined CPU core > (LP: #1736393) > - SAUCE: drm/i915:Don't set chip specific data > - SAUCE: drm/i915: make previous commit affects Wyse 3040 only > > * ppc64el: Do not call ibm,os-term on panic (LP: #1736954) > - powerpc: Do not call ppc_md.panic in fadump panic notifier > > * Artful update to 4.13.16 stable release (LP: #1744213) > - tcp_nv: fix division by zero in tcpnv_acked() > - net: vrf: correct FRA_L3MDEV encode type > - tcp: do not mangle skb->cb[] in tcp_make_synack() > - net: systemport: Correct IPG length settings > - netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed > - l2tp: don't use l2tp_tunnel_find() in l2tp_ip and l2tp_ip6 > - bonding: discard lowest hash bit for 802.3ad layer3+4 > - net: cdc_ether: fix divide by 0 on bad descriptors > - net: qmi_wwan: fix divide by 0 on bad descriptors > - qmi_wwan: Add missing skb_reset_mac_header-call > - net: usb: asix: fill null-ptr-deref in asix_suspend > - tcp: gso: avoid refcount_t warning from tcp_gso_segment() > - tcp: fix tcp_fastretrans_alert warning > - vlan: fix a use-after-free in vlan_device_event() > - net/mlx5: Cancel health poll before sending panic teardown command > - net/mlx5e: Set page to null in case dma mapping fails > - af_netlink: ensure that NLMSG_DONE never fails in dumps > - vxlan: fix the issue that neigh proxy blocks all icmpv6 packets > - net: cdc_ncm: GetNtbFormat endian fix > - fealnx: Fix building error on MIPS > - net/sctp: Always set scope_id in sctp_inet6_skb_msgname > - ima: do not update security.ima if appraisal status is not > INTEGRITY_PASS > - serial: omap: Fix EFR write on RTS deassertion > - serial: 8250_fintek: Fix finding base_port with activated SuperIO > - tpm-dev-common: Reject too short writes > - rcu: Fix up pending cbs check in rcu_prepare_for_idle > - ocfs2: fix cluster hang after a node dies > - ocfs2: should wait dio before inode lock in ocfs2_setattr() > - ipmi: fix unsigned long underflow > - mm/page_alloc.c: broken deferred calculation > - mm/page_ext.c: check if page_ext is not prepared > - x86/cpu/amd: Derive L3 shared_cpu_map from cpu_llc_shared_mask > - coda: fix 'kernel memory exposure attempt' in fsync > - Linux 4.13.16 > > * Artful update to 4.13.15 stable release (LP: #1744212) > - media: imon: Fix null-ptr-deref in imon_probe > - media: dib0700: fix invalid dvb_detach argument > - crypto: dh - Fix double free of ctx->p > - crypto: dh - Don't permit 'p' to be 0 > - crypto: dh - Don't permit 'key' or 'g' size longer than 'p' > - USB: early: Use new USB product ID and strings for DbC device > - USB: usbfs: compute urb->actual_length for isochronous > - USB: Add delay-init quirk for Corsair K70 LUX keyboards > - usb: gadget: f_fs: Fix use-after-free in ffs_free_inst > - USB: serial: metro-usb: stop I/O after failed open > - USB: serial: Change DbC debug device binding ID > - USB: serial: qcserial: add pid/vid for Sierra Wireless EM7355 fw update > - USB: serial: garmin_gps: fix I/O after failed probe and remove > - USB: serial: garmin_gps: fix memory leak on probe errors > - x86/MCE/AMD: Always give panic severity for UC errors in kernel context > - platform/x86: peaq-wmi: Add DMI check before binding to the WMI > interface > - platform/x86: peaq_wmi: Fix missing terminating entry for peaq_dmi_table > - HID: cp2112: add HIDRAW dependency > - HID: wacom: generic: Recognize WACOM_HID_WD_PEN as a type of pen > collection > - staging: wilc1000: Fix bssid buffer offset in Txq > - staging: ccree: fix 64 bit scatter/gather DMA ops > - staging: greybus: spilib: fix use-after-free after deregistration > - staging: vboxvideo: Fix reporting invalid suggested-offset-properties > - staging: rtl8188eu: Revert 4 commits breaking ARP > - Linux 4.13.15 > > * time drifting on linux-hwe kernels (LP: #1744988) > - x86/tsc: Future-proof native_calibrate_tsc() > - x86/tsc: Fix erroneous TSC rate on Skylake Xeon > - x86/tsc: Print tsc_khz, when it differs from cpu_khz > > * Please backport vmd suspend/resume patches to 16.04 hwe (LP: #1745508) > - PCI: vmd: Free up IRQs on suspend path > > * CVE-2017-17448 > - netfilter: nfnetlink_cthelper: Add missing permission checks > > * Dell XPS 13 9360 bluetooth (Atheros) won't connect after resume > (LP: #1744712) > - Bluetooth: btusb: Restore QCA Rome suspend/resume fix with a "rewritten" > version > > * [SRU] TrackPoint: middle button doesn't work on TrackPoint-compatible > device. (LP: #1746002) > - Input: trackpoint - force 3 buttons if 0 button is reported > > * TB16 dock ethernet corrupts data with hw checksum silently failing > (LP: #1729674) > - r8152: disable RX aggregation on Dell TB16 dock > > * [Artful] Realtek ALC225: 2 secs noise when a headset plugged in > (LP: #1744058) > - Revert "UBUNTU: SAUCE: ALSA: hda/realtek - Add support headset mode for > DELL > WYSE" > - SAUCE: ALSA: hda/realtek - Add support headset mode for DELL WYSE > - ALSA: hda/realtek - update ALC225 depop optimize > > * [A] skb leak in vhost_net / tun / tap (LP: #1738975) > - vhost: fix skb leak in handle_rx() > - tap: free skb if flags error > - tun: free skb in early errors > > * Commit d9018976cdb6 missing in Kernels <4.14.x preventing lasting fix of > Intel SPI bug on certain serial flash (LP: #1742696) > - mfd: lpc_ich: Do not touch SPI-NOR write protection bit on > Haswell/Broadwell > - spi-nor: intel-spi: Fix broken software sequencing codes > > * CVE-2018-5332 > - RDS: Heap OOB write in rds_message_alloc_sgs() > > * [A] KVM Windows BSOD on 4.13.x (LP: #1738972) > - KVM: x86: fix APIC page invalidation > > * elantech touchpad of Lenovo L480/580 failed to detect hw_version > (LP: #1733605) > - Input: elantech - add new icbody type 15 > > * [SRU] External HDMI monitor failed to show screen on Lenovo X1 series > (LP: #1738523) > - SAUCE: drm/i915: Disable writing of TMDS_OE on Lenovo ThinkPad X1 series > > * ubuntu/xr-usb-serial didn't get built in zesty and artful (LP: #1733281) > - SAUCE: make sure ubuntu/xr-usb-serial builds for x86 > > * Disabling zfs does not always disable module checks for the zfs modules > (LP: #1737176) > - [Packaging] disable zfs module checks when zfs is disabled > > * CVE-2017-17806 > - crypto: hmac - require that the underlying hash algorithm is unkeyed > > * CVE-2017-17805 > - crypto: salsa20 - fix blkcipher_walk API usage > > * CVE-2017-16994 > - mm/pagewalk.c: report holes in hugetlb ranges > > * CVE-2017-17450 > - netfilter: xt_osf: Add missing permission checks > > * apparmor profile load in stacked policy container fails (LP: #1746463) > - SAUCE: apparmor: fix display of .ns_name for containers > > * CVE-2017-15129 > - net: Fix double free and memory corruption in get_net_ns_by_id() > > * CVE-2018-5344 > - loop: fix concurrent lo_open/lo_release > > * CVE-2017-1000407 > - KVM: VMX: remove I/O port 0x80 bypass on Intel hosts > > * CVE-2017-0861 > - ALSA: pcm: prevent UAF in snd_pcm_info > > * perf stat segfaults on uncore events w/o -a (LP: #1745246) > - perf xyarray: Save max_x, max_y > - perf evsel: Fix buffer overflow while freeing events > > * Support cppc-cpufreq driver on ThunderX2 systems (LP: #1745007) > - mailbox: PCC: Move the MAX_PCC_SUBSPACES definition to header file > - ACPI / CPPC: Make CPPC ACPI driver aware of PCC subspace IDs > - ACPI / CPPC: Fix KASAN global out of bounds warning > - ACPI: CPPC: remove initial assignment of pcc_ss_data > > * P-state not working in kernel 4.13 (LP: #1743269) > - x86 / CPU: Avoid unnecessary IPIs in arch_freq_get_on_cpu() > - x86 / CPU: Always show current CPU frequency in /proc/cpuinfo > > * Regression: KVM no longer supports Intel CPUs without Virtual NMI > (LP: #1741655) > - kvm: vmx: Reinstate support for CPUs without virtual NMI > > * System hang with Linux kernel due to mainline commit 24247aeeabe > (LP: #1733662) > - x86/intel_rdt/cqm: Prevent use after free > > * $(LOCAL_ENV_CC) and $(LOCAL_ENV_DISTCC_HOSTS) should be properly quoted > (LP: #1744077) > - [Debian] pass LOCAL_ENV_CC and LOCAL_ENV_DISTCC_HOSTS properly > > * the wifi driver is always hard blocked on a lenovo laptop (LP: #1743672) > - ACPI: EC: Fix possible issues related to EC initialization order > > * text VTs are unavailable on desktop after upgrade to Ubuntu 17.10 > (LP: #1724911) > - drm/i915/fbdev: Always forward hotplug events > > * Samsung SSD 960 EVO 500GB refused to change power state (LP: #1705748) > - nvme-pci: disable APST on Samsung SSD 960 EVO + ASUS PRIME B350M-A > > * [0cf3:e010] QCA6174A XR failed to pair with bt 4.0 device (LP: #1741166) > - Bluetooth: btusb: Add support for 0cf3:e010 > > * CVE-2017-17741 > - KVM: Fix stack-out-of-bounds read in write_mmio > > * CVE-2018-5333 > - RDS: null pointer dereference in rds_atomic_free_op > > * [800 G3 SFF] [800 G3 DM]External microphone of headset(3-ring) is working, > 2-ring mic not working, both not shown in sound settings (LP: #1740974) > - ALSA: hda - Add MIC_NO_PRESENCE fixup for 2 HP machines > > * Two front mics can't work on a lenovo machine (LP: #1740973) > - ALSA: hda - change the location for one mic on a Lenovo machine > > * No external microphone be detected via headset jack on a dell machine > (LP: #1740972) > - ALSA: hda - fix headset mic detection issue on a Dell machine > > * Can't detect external headset via line-out jack on some Dell machines > (LP: #1740971) > - ALSA: hda/realtek - Fix Dell AIO LineOut issue > > * Support realtek new codec alc257 in the alsa hda driver (LP: #1738911) > - ALSA: hda/realtek - New codec support for ALC257 > > * Add support for 16g huge pages on Ubuntu 16.04.2 PowerNV (LP: #1706247) > - powerpc/mm/hugetlb: Allow runtime allocation of 16G. > - powerpc/mm/hugetlb: Add support for reserving gigantic huge pages via > kernel > command line > - mm/hugetlb: Allow arch to override and call the weak function > > * the kernel is blackholing IPv6 packets to linkdown nexthops (LP: #1738219) > - ipv6: Do not consider linkdown nexthops during multipath > > * e1000e in 4.4.0-97-generic breaks 82574L under heavy load. (LP: #1730550) > - e1000e: Avoid receiver overrun interrupt bursts > - e1000e: Separate signaling for link check/link up > > * Ubuntu 17.10: Include patch "crypto: vmx - Use skcipher for ctr fallback" > (LP: #1732978) > - crypto: vmx - Use skcipher for ctr fallback > > * QCA Rome bluetooth can not wakeup after USB runtime suspended. > (LP: #1737890) > - Bluetooth: btusb: driver to enable the usb-wakeup feature > > * /dev/bcache/by-uuid links not created after reboot (LP: #1729145) > - SAUCE: (no-up) bcache: decouple emitting a cached_dev CHANGE uevent > > * Some VMs fail to reboot with "watchdog: BUG: soft lockup - CPU#0 stuck for > 22s! [systemd:1]" (LP: #1730717) > - SAUCE: exec: fix lockup because retry loop may never exit > > * Request to backport cxlflash patches to 16.04 HWE Kernel (LP: #1730515) > - scsi: cxlflash: Use derived maximum write same length > - scsi: cxlflash: Allow cards without WWPN VPD to configure > - scsi: cxlflash: Derive pid through accessors > > * vagrant artful64 box filesystem too small (LP: #1726818) > - block: factor out __blkdev_issue_zero_pages() > - block: cope with WRITE ZEROES failing in blkdev_issue_zeroout() > > * Artful update to 4.13.14 stable release (LP: #1744121) > - ppp: fix race in ppp device destruction > - gso: fix payload length when gso_size is zero > - ipv4: Fix traffic triggered IPsec connections. > - ipv6: Fix traffic triggered IPsec connections. > - netlink: do not set cb_running if dump's start() errs > - net: call cgroup_sk_alloc() earlier in sk_clone_lock() > - macsec: fix memory leaks when skb_to_sgvec fails > - l2tp: check ps->sock before running pppol2tp_session_ioctl() > - netlink: fix netlink_ack() extack race > - sctp: add the missing sock_owned_by_user check in sctp_icmp_redirect > - tcp/dccp: fix ireq->opt races > - packet: avoid panic in packet_getsockopt() > - geneve: Fix function matching VNI and tunnel ID on big-endian > - net: bridge: fix returning of vlan range op errors > - soreuseport: fix initialization race > - ipv6: flowlabel: do not leave opt->tot_len with garbage > - sctp: full support for ipv6 ip_nonlocal_bind & IP_FREEBIND > - tcp/dccp: fix lockdep splat in inet_csk_route_req() > - tcp/dccp: fix other lockdep splats accessing ireq_opt > - net: dsa: check master device before put > - net/unix: don't show information about sockets from other namespaces > - tap: double-free in error path in tap_open() > - net/mlx5: Fix health work queue spin lock to IRQ safe > - net/mlx5e: Properly deal with encap flows add/del under neigh update > - ipip: only increase err_count for some certain type icmp in ipip_err > - ip6_gre: only increase err_count for some certain type icmpv6 in > ip6gre_err > - ip6_gre: update dst pmtu if dev mtu has been updated by toobig in > __gre6_xmit > - tcp: refresh tp timestamp before tcp_mtu_probe() > - tap: reference to KVA of an unloaded module causes kernel panic > - sctp: reset owner sk for data chunks on out queues when migrating a sock > - net_sched: avoid matching qdisc with zero handle > - l2tp: hold tunnel in pppol2tp_connect() > - ipv6: addrconf: increment ifp refcount before ipv6_del_addr() > - tcp: fix tcp_mtu_probe() vs highest_sack > - mac80211: accept key reinstall without changing anything > - mac80211: use constant time comparison with keys > - mac80211: don't compare TKIP TX MIC key in reinstall prevention > - usb: usbtest: fix NULL pointer dereference > - Input: ims-psu - check if CDC union descriptor is sane > - EDAC, sb_edac: Don't create a second memory controller if HA1 is not > present > - dmaengine: dmatest: warn user when dma test times out > - Linux 4.13.14 > > -- Stefan Bader <stefan.ba...@canonical.com> Wed, 14 Mar 2018 11:38:23 > +0100 > > ** Changed in: linux (Ubuntu Artful) > Status: Fix Committed => Fix Released > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-0861 > > ** CVE added: https://cve.mitre.org/cgi- > bin/cvename.cgi?name=2017-1000407 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-15129 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-16994 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17448 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17450 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17741 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17805 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17806 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-17807 > > ** CVE added: https://cve.mitre.org/cgi- > bin/cvename.cgi?name=2018-1000026 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5332 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5333 > > ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-5344 > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1729145 > > Title: > /dev/bcache/by-uuid links not created after reboot > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729145/+subscriptions
-- 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/1729145 Title: /dev/bcache/by-uuid links not created after reboot Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: Fix Committed Status in linux source package in Zesty: Won't Fix Status in linux source package in Artful: Fix Released Status in linux source package in Bionic: In Progress Bug description: 1. $ lsb_release -rd Description: Ubuntu 17.10 Release: 17.10 2. $ apt-cache policy linux-image-`uname -r` linux-image-4.13.0-16-generic: Installed: 4.13.0-16.19 Candidate: 4.13.0-16.19 Version table: *** 4.13.0-16.19 500 500 http://nova.clouds.archive.ubuntu.com/ubuntu artful/main amd64 Packages 100 /var/lib/dpkg/status 3. After creating some bcache devices and rebooting /dev/bcache/by-uuid/<UUID> -> ../../bcacheN symlinks point to the current bcache device which is caching the dev.uuid found after creating a backing device. 4. /dev/bcache/by-uuid does not exist and there are not symlinks underneath It appears that since the initramfs loads the bcache module which probes and finds all of the cache devices and backing devices then once the rootfs is mounted and udev gets to run, the bcache kernel module does not emit the CACHED_UUID value into the environment if the underlying devices are already registered. In dmesg, one can see that prior to mounting the rootfs, we see bcache register events: [ 5.333973] bcache: register_bdev() registered backing device vdb2 [ 5.354138] bcache: register_bdev() registered backing device vdb4 [ 5.365665] bcache: register_bdev() registered backing device vdb3 [ 5.397720] bcache: bch_journal_replay() journal replay done, 0 keys in 1 entries, seq 1 [ 5.428683] bcache: register_cache() registered cache device vdb1 then rootfs ismounted and systemd starts systemd-udev [ 9.350889] systemd[1]: Listening on udev Kernel Socket. And then the coldplug replay of kernel events triggers /lib/udev/rules.d/69-bcache.rules which invokes /lib/udev/bcache-register which writes the device name (/dev/vdb1 or /dev/bcache0) into /sys/fs/bcache/register and results is the bcache kernel driver attempting to register the block device. However, there is already a bcache device associated already and registration fails [ 11.173141] bcache: register_bcache() error opening /dev/vdb2: device already registered [ 11.184617] bcache: register_bcache() error opening /dev/vdb3: device already registered [ 11.199130] bcache: register_bcache() error opening /dev/vdb1: device already registered [ 11.271694] bcache: register_bcache() error opening /dev/vdb4: device already registered The problem then is that only a kernel call to bch_cached_dev_run() which happens like this: bcache_register() register_bdev() bch_cached_dev_run() kobject_uevent_env(&disk_to_dev(d->disk)->kobj, KOBJ_CHANGE, env); where env includes: "DRIVER=bcache", kasprintf(GFP_KERNEL, "CACHED_UUID=%pU", dc->sb.uuid), NULL, NULL, }; Since that event is not emitted for any previously registered device, then the symlink will not be created. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: User Name 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Oct 31 22:09 seq crw-rw---- 1 root audio 116, 33 Oct 31 22:09 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: N/A Date: Wed Nov 1 01:39:01 2017 Ec2AMI: ami-0000030b Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: m1.small Ec2Kernel: unavailable Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: OpenStack Foundation OpenStack Nova PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/01/2014 dmi.bios.vendor: SeaBIOS dmi.bios.version: 1.10.1-1ubuntu1~cloud0 dmi.chassis.type: 1 dmi.chassis.vendor: QEMU dmi.chassis.version: pc-i440fx-zesty dmi.modalias: dmi:bvnSeaBIOS:bvr1.10.1-1ubuntu1~cloud0:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr15.0.7:cvnQEMU:ct1:cvrpc-i440fx-zesty: dmi.product.family: Virtual Machine dmi.product.name: OpenStack Nova dmi.product.version: 15.0.7 dmi.sys.vendor: OpenStack Foundation Related bugs: * bug 1728742: [userspace] curtin dname for bcache uses unstable devname instead of UUID Edit To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729145/+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
