------- Comment From chngu...@us.ibm.com 2018-01-24 15:10 EDT------- (In reply to comment #6) > I built a test kernel with commit 2621e945fbf1d6df5f3f0ba7be5bae3d2cf9b6a5. > The test kernel can be downloaded from: > http://kernel.ubuntu.com/~jsalisbury/lp1745104 > > Can you test this kernel and see if it resolves this bug? > > Note, to test this kernel, you need to install both the linux-image and > linux-image-extra .deb packages. > > Thanks in advance!
Thanks. It works but I see another error the "makedumpfile Failed". root@boslcp4g5:~# echo c > /proc/sysrq-trigger [ 80.255377] sysrq: SysRq : Trigger a crash [ 80.255490] Unable to handle kernel paging request for data at address 0x00000000 [ 80.255597] Faulting instruction address: 0xc00000000078f608 [ 80.255708] Oops: Kernel access of bad area, sig: 11 [#1] [ 80.255781] SMP NR_CPUS=2048 [ 80.255782] NUMA [ 80.255837] pSeries [ 80.255930] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache sctp_diag sctp libcrc32c dccp_diag dccp tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag binfmt_misc vmx_crypto crct10dif_vpmsum dm_service_time dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua sch_fq_codel sunrpc ip_tables x_tables autofs4 btrfs xor raid6_pq crc32c_vpmsum virtio_net virtio_scsi [ 80.256798] CPU: 12 PID: 1928 Comm: bash Not tainted 4.13.0-17-generic #20~lp1745104 [ 80.256907] task: c0000000053c8a00 task.stack: c0000001ec3dc000 [ 80.257010] NIP: c00000000078f608 LR: c000000000790538 CTR: c00000000078f5e0 [ 80.257116] REGS: c0000001ec3df9f0 TRAP: 0300 Not tainted (4.13.0-17-generic) [ 80.257221] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> [ 80.257232] CR: 28422222 XER: 20040000 [ 80.257355] CFAR: c000000000790534 DAR: 0000000000000000 DSISR: 42000000 SOFTE: 1 [ 80.257355] GPR00: c000000000790538 c0000001ec3dfc70 c000000001606000 0000000000000063 [ 80.257355] GPR04: c0000001feeeade8 c0000001fef02068 6967676572206120 63726173680d0a72 [ 80.257355] GPR08: 0000000000000007 0000000000000001 0000000000000000 0000000000000000 [ 80.257355] GPR12: c00000000078f5e0 c000000007ac7e00 0000000010180df8 0000000010189e30 [ 80.257355] GPR16: 0000000010189ea8 0000000010151210 000000001018bd58 000000001018de48 [ 80.257355] GPR20: 00000000121f0248 0000000000000001 0000000010164590 0000000010163bb0 [ 80.257355] GPR24: 00007fffd06a0724 00007fffd06a0720 c00000000150a570 0000000000000002 [ 80.257355] GPR28: 0000000000000063 0000000000000004 c0000000014922f4 c00000000150a910 [ 80.258340] NIP [c00000000078f608] sysrq_handle_crash+0x28/0x30 [ 80.258433] LR [c000000000790538] __handle_sysrq+0xf8/0x2b0 [ 80.258504] Call Trace: [ 80.258546] [c0000001ec3dfc70] [c000000000790518] __handle_sysrq+0xd8/0x2b0 (unreliable) [ 80.258657] [c0000001ec3dfd10] [c000000000790d34] write_sysrq_trigger+0x64/0x90 [ 80.258789] [c0000001ec3dfd40] [c00000000044c0c8] proc_reg_write+0x88/0xd0 [ 80.258883] [c0000001ec3dfd70] [c00000000039db8c] __vfs_write+0x3c/0x70 [ 80.258975] [c0000001ec3dfd90] [c00000000039f7c8] vfs_write+0xd8/0x220 [ 80.259067] [c0000001ec3dfde0] [c0000000003a1648] SyS_write+0x68/0x110 [ 80.259159] [c0000001ec3dfe30] [c00000000000b184] system_call+0x58/0x6c [ 80.259248] Instruction dump: [ 80.259306] 4bfff9f1 4bfffe50 3c4c00e7 38426a20 7c0802a6 60000000 39200001 3d42001d [ 80.259420] 394ad788 912a0000 7c0004ac 39400000 <992a0000> 4e800020 3c4c00e7 384269f0 [ 80.259538] ---[ end trace 1a6f8bd87bc98f1a ]--- [ 80.266608] [ 80.266754] Sending IPI to other CPUs [ 80.332950] IPI complete [ 80.343090] kexec: Starting switchover sequence. I'm in purgatory -> smp_release_cpus() spinning_secondaries = 15 <- smp_release_cpus() Linux ppc64le #20~lp1745104 SM[ 0.964806] Unable to open file: /etc/keys/x509_ima.der (-2) [ 0.964813] Unable to open file: /etc/keys/x509_evm.der (-2) [ 1.129495] vio vio: uevent: failed to send synthetic uevent /dev/sde2: recovering journal /dev/sde2: clean, 87024/3932160 files, 1989241/15726336 blocks [ 2.090741] nvram: Failed to find partition of-config, err 0 [ 3.200128] vio vio: uevent: failed to send synthetic uevent [ OK ] Started Show Plymouth Boot Screen. plymouth-start.service [ OK ] Reached target Local Encrypted Volumes. [ OK ] Started Forward Password Requests to Plymouth Directory Watch. systemd-tmpfiles-setup.service [ OK ] Started Create Volatile Files and Directories. Starting Update UTMP about System Boot/Shutdown... Starting Network Time Synchronization... [ OK ] Started Update UTMP about System Boot/Shutdown. systemd-update-utmp.service [ OK ] Started Network Time Synchronization. [ OK ] Reached target System Time Synchronized. systemd-timesyncd.service apparmor.service [ OK ] Started AppArmor initialization. [ OK ] Reached target System Initialization. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Wait for Network to be Configured. systemd-networkd-wait-online.service [ OK ] Reached target Network is Online. Starting Kernel crash dump capture service... Starting RMC-Resource Monitioring and Control StartOnly... [ 8.478318] kdump-tools[868]: Starting kdump-tools: * running makedumpfile -c -d 31 /proc/vmcore /var/crash/201801240706/dump-incomplete Checking for memory holes : [100.0 %] | readmem: Can't convert a virtual address(c00a000000800000) to physical address. [ 8.524077] kdump-tools[868]: readmem: type_addr: 0, addr:c00a000000800000, size:16384 [ 8.524533] kdump-tools[868]: __exclude_unnecessary_pages: Can't read the buffer of struct page. [ 8.524978] kdump-tools[868]: create_2nd_bitmap: Can't exclude unnecessary pages. [ 8.525465] kdump-tools[868]: The kernel version is not supported. [ 8.525582] kdump-tools[868]: The makedumpfile operation may be incomplete. [ 8.525684] kdump-tools[868]: makedumpfile Failed. [ 8.526933] kdump-tools[868]: * kdump-tools: makedumpfile failed, falling back to 'cp' [ 15.367526] kdump-tools[868]: * kdump-tools: saved vmcore in /var/crash/201801240706 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745104 Title: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1745104/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
