Hello, So do you confirm that the latest kernel installed from the PPA also solves the makedumpfile issue identified in https://bugs.launchpad.net/ubuntu/xenial/+source/makedumpfile/+bug/1626269 ?
Kind regards, ...Louis -- 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/1627126 Title: Machine crashes to (initramfs) after Triggering a crash - missing crc32c module Status in linux package in Ubuntu: Triaged Status in makedumpfile package in Ubuntu: New Bug description: == Comment: #6 - PAVAMAN SUBRAMANIYAM - 2016-09-23 01:12:09 == I have installed the latest Ubuntu 16.10 4.8.0-15-generic kernel on the machine. root@powerkvm3-lp1:~# uname -a Linux powerkvm3-lp1 4.8.0-15-generic #16-Ubuntu SMP Wed Sep 21 20:45:56 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux root@powerkvm3-lp1:~# cat /etc/os-release NAME="Ubuntu" VERSION="16.10 (Yakkety Yak)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.10" VERSION_ID="16.10" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; PRIVACY_POLICY_URL="http://www.ubuntu.com/legal/terms-and-policies/privacy-policy"; VERSION_CODENAME=yakkety UBUNTU_CODENAME=yakkety Then again triggered the crash on the machine using sysrq-trigger. root@powerkvm3-lp1:~# kdump-config show DUMP_MODE: kdump USE_KDUMP: 1 KDUMP_SYSCTL: kernel.panic_on_oops=1 KDUMP_COREDIR: /var/crash crashkernel addr: /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.8.0-15-generic kdump initrd: /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-4.8.0-15-generic current state: ready to kdump kexec command: /sbin/kexec -p --command-line="root=UUID=85301ac1-2c85-426a-a9f2-fa87254fc9a7 ro quiet splash irqpoll nr_cpus=1 nousb systemd.unit=kdump-tools.service" --initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz root@powerkvm3-lp1:~# cat /proc/sys/kernel/sysrq 176 root@powerkvm3-lp1:~# sysctl -w kernel.sysrq=1 kernel.sysrq = 1 root@powerkvm3-lp1:~# cat /proc/sys/kernel/sysrq 1 But again the machine went to (initramfs) prompt since it could not load rootfs. Ubuntu Yakkety Yak (development branch) powerkvm3-lp1 hvc0 powerkvm3-lp1 login: [ 655.378861] sysrq: SysRq : Trigger a crash [ 655.378969] Unable to handle kernel paging request for data at address 0x00000000 [ 655.379047] Faulting instruction address: 0xc0000000005c28f4 [ 655.379112] Oops: Kernel access of bad area, sig: 11 [#1] [ 655.379163] SMP NR_CPUS=2048 NUMA PowerNV [ 655.379216] Modules linked in: btrfs ipmi_msghandler raid6_pq xor sg powernv_rng rng_core ghash_generic gf128mul powernv_op_panel vmx_crypto ip_tables x_tables autofs4 crc32c_generic ext4 crc16 jbd2 fscrypto mbcache sr_mod cdrom sd_mod crc32c_vpmsum xhci_pci xhci_hcd lpfc usbcore tg3 be2net ptp usb_common scsi_transport_fc pps_core ipr libphy [ 655.379757] CPU: 25 PID: 6866 Comm: bash Not tainted 4.8.0-15-generic #16-Ubuntu [ 655.379832] task: c000000fea14af00 task.stack: c000000fed1c8000 [ 655.379896] NIP: c0000000005c28f4 LR: c0000000005c39d8 CTR: c0000000005c28c0 [ 655.379971] REGS: c000000fed1cb990 TRAP: 0300 Not tainted (4.8.0-15-generic) [ 655.380045] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 28242422 XER: 20000000 [ 655.380235] CFAR: c0000000000087d0 DAR: 0000000000000000 DSISR: 42000000 SOFTE: 1 GPR00: c0000000005c39d8 c000000fed1cbc10 c000000000f67b00 0000000000000063 GPR04: c000000ff964a9b8 c000000ff965f7e0 c000003fff800000 0000000000029610 GPR08: 0000000000000007 0000000000000001 0000000000000000 0000000000000001 GPR12: c0000000005c28c0 c00000000177e100 ffffffffffffffff 0000000022000000 GPR16: 0000000010170dc8 0000010024567738 0000000010140f58 00000000100c7570 GPR20: 0000000000000000 000000001017dd58 0000000010153618 000000001017b608 GPR24: 00003ffff92ceca4 0000000000000001 c000000000ebff60 0000000000000004 GPR28: c000000000ec0320 0000000000000063 c000000000e72a90 0000000000000000 [ 655.381234] NIP [c0000000005c28f4] sysrq_handle_crash+0x34/0x50 [ 655.381299] LR [c0000000005c39d8] __handle_sysrq+0xe8/0x280 [ 655.381350] Call Trace: [ 655.381377] [c000000fed1cbc10] [c000000000a245e8] 0xc000000000a245e8 (unreliable) [ 655.381466] [c000000fed1cbc30] [c0000000005c39d8] __handle_sysrq+0xe8/0x280 [ 655.381543] [c000000fed1cbcd0] [c0000000005c4188] write_sysrq_trigger+0x78/0xa0 [ 655.381632] [c000000fed1cbd00] [c0000000003ad770] proc_reg_write+0xb0/0x110 [ 655.381708] [c000000fed1cbd50] [c00000000030fc3c] __vfs_write+0x6c/0xe0 [ 655.381784] [c000000fed1cbd90] [c000000000311144] vfs_write+0xd4/0x240 [ 655.381860] [c000000fed1cbde0] [c000000000312e5c] SyS_write+0x6c/0x110 [ 655.381936] [c000000fed1cbe30] [c0000000000095e0] system_call+0x38/0x108 [ 655.382011] Instruction dump: [ 655.382050] 38425240 7c0802a6 f8010010 f821ffe1 60000000 60000000 3d220019 3949ba60 [ 655.382295] 39200001 912a0000 7c0004ac 39400000 <992a0000> 38210020 e8010010 7c0803a6 [ 655.382542] ---[ end trace b6ba9c85dbc3ed19 ]--- [ 655.384326] [ 655.384460] Sending IPI to other CPUs [ 655.385625] IPI complete [ 655.387414] kexec: waiting for cpu 0 (physical 32) to enter OPAL [ 655.390586] kexec: waiting for cpu 3 (physical 35) to enter OPAL -> smp_release_cpus() spinning_secondaries = 127 <- smp_release_cpus() /dev/sdg2: recovering journal /dev/sdg2: clean, 129347/67042944 files, 5438910/267649024 blocks [ 124.853983] EXT4-fs (sdg2): Cannot load crc32c driver. mount: mounting /dev/sdg2 on /root failed: No such file or directory [ 127.473595] sd 1:0:11:0: [sdk] Asking for cache data failed [ 127.473698] sd 1:0:11:0: [sdk] Assuming drive cache: write through mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /run on /root/run failed: No such file or directory run-init: current directory on the same filesystem as the root: error 0 Target filesystem doesn't have requested /sbin/init. run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 No init found. Try passing init= bootarg. BusyBox v1.22.1 (Ubuntu 1:1.22.0-19ubuntu2) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) (initramfs) ls dev lib lib64 usr run sbin sys tmp root scripts etc bin init conf proc var == Comment: #11 - Kevin W. Rudd - 2016-09-23 13:26:51 == Hello Canonical. This is related to the issue originally reported in LP Bug 1626269. Because Bug 1626269 references two distictly different problems, we are mirroring this over to track the issues with the missing crc32c module so that LP Bug 1626269 (IBM Bug 146571) can focus on the issue with the makedumpfile utility. Thanks. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627126/+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
