------- Comment (attachment only) From bren...@br.ibm.com 2016-03-30 13:06 EDT-------
** Attachment added: "kexec-tools fixed" https://bugs.launchpad.net/bugs/1546260/+attachment/4617287/+files/kexec-tools_2.0.10-1ubuntu2~lp1546260_ppc64el.deb -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1546260 Title: kexec/kdump not working in ubuntu 16.04 Status in kexec-tools package in Ubuntu: In Progress Bug description: == Comment: #0 - Praveen K. Pandey <praveen.pan...@in.ibm.com> - 2016-02-04 04:11:48 == Hi I installed Ubuntu16.04 as PowerVM/KVM/PowerNV and setup kdump as well use PPA build to resolve sym link problem broken installed kdump- tools 1:1.5.9-4~lp1536904, and trigger kdump .While dumping process console hung not able to get vmcore. Reproducible Step: 1- Installed Ubuntu16.04 2- Installed PPA build of Kdump mentioned in bug135822 3- Start kdump service 4- Trigger a panic Expected Result : Able to generate kdump Actual Result : System halt on dump process , seems me having initrd issue LOG: root@ubuntu:~# kdump-config load Modified cmdline:BOOT_IMAGE=/boot/vmlinux-4.4.0-2-generic root=UUID=9d1662d4-db2a-4a1a-b8d7-8b0d4e7872dd ro splash quiet irqpoll maxcpus=1 nousb systemd.unit=kdump-tools.service elfcorehdr=156288K * loaded kdump kernel root@ubuntu:~# 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-4.4.0-2-generic kdump initrd: /var/lib/kdump/initrd.img: symbolic link to /var/lib/kdump/initrd.img-4.4.0-2-generic current state: ready to kdump kexec command: /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.4.0-2-generic root=UUID=2a78d070-4b73-4da6-b7eb-d41164c909fa ro splash quiet irqpoll maxcpus=1 nousb systemd.unit=kdump-tools.service" --initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz root@ubuntu:~# root@ubuntu:~# kdump-config status current state : ready to kdump root@ubuntu:~# root@ubuntu:~# echo 1 > /proc/sys/kernel/sysrq root@ubuntu:~# echo c > /proc/sysrq-trigger [ 164.495349] sysrq: SysRq : Trigger a crash [ 164.495360] Unable to handle kernel paging request for data at address 0x00000000 [ 164.495364] Faulting instruction address: 0xc000000000654db4 [ 164.495368] Oops: Kernel access of bad area, sig: 11 [#1] [ 164.495370] SMP NR_CPUS=2048 NUMA pSeries [ 164.495374] Modules linked in: rpadlpar_io rpaphp dccp_diag dccp tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag binfmt_misc uas usb_storage pseries_rng rtc_generic autofs4 ibmvscsi ibmveth [ 164.495389] CPU: 0 PID: 1281 Comm: bash Not tainted 4.4.0-2-generic #16-Ubuntu [ 164.495393] task: c0000003f1f2a200 ti: c000000006ef8000 task.ti: c000000006ef8000 [ 164.495396] NIP: c000000000654db4 LR: c000000000655e68 CTR: c000000000654d80 [ 164.495399] REGS: c000000006efb990 TRAP: 0300 Not tainted (4.4.0-2-generic) [ 164.495401] MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 28242222 XER: 00000001 [ 164.495410] CFAR: c000000000008468 DAR: 0000000000000000 DSISR: 42000000 SOFTE: 1 GPR00: c000000000655e68 c000000006efbc10 c000000001583800 0000000000000063 GPR04: c0000003ff609c50 c0000003ff61b4f0 c0000003ffe6c200 000000000000015b GPR08: 0000000000000007 0000000000000001 0000000000000000 c0000003ffe72710 GPR12: c000000000654d80 c000000007ae0000 ffffffffffffffff 0000000022000000 GPR16: 0000000010170710 000001002c890608 00000000101406f0 00000000100c7100 GPR20: 0000000000000000 000000001017df98 0000000010140588 0000000000000000 GPR24: 0000000010153440 000000001017b848 c0000000014c8540 0000000000000004 GPR28: c0000000014c8900 0000000000000063 c0000000014810bc 0000000000000000 [ 164.495451] NIP [c000000000654db4] sysrq_handle_crash+0x34/0x50 [ 164.495454] LR [c000000000655e68] __handle_sysrq+0xe8/0x270 [ 164.495456] Call Trace: [ 164.495460] [c000000006efbc10] [c000000000de3008] _fw_tigon_tg3_bin_name+0x2cc30/0x33d18 (unreliable) [ 164.495464] [c000000006efbc30] [c000000000655e68] __handle_sysrq+0xe8/0x270 [ 164.495468] [c000000006efbcd0] [c000000000656608] write_sysrq_trigger+0x78/0xa0 [ 164.495472] [c000000006efbd00] [c000000000374e70] proc_reg_write+0xb0/0x110 [ 164.495476] [c000000006efbd50] [c0000000002dcabc] __vfs_write+0x6c/0xe0 [ 164.495480] [c000000006efbd90] [c0000000002dd7f0] vfs_write+0xc0/0x230 [ 164.495484] [c000000006efbde0] [c0000000002de82c] SyS_write+0x6c/0x110 [ 164.495488] [c000000006efbe30] [c000000000009204] system_call+0x38/0xb4 [ 164.495490] Instruction dump: [ 164.495493] 3842ea80 7c0802a6 f8010010 f821ffe1 60000000 60000000 3d220019 394956e4 [ 164.495499] 39200001 912a0000 7c0004ac 39400000 <992a0000> 38210020 e8010010 7c0803a6 [ 164.495506] ---[ end trace 5ddbc181c028cb6c ]--- [ 164.497176] [ 164.497180] Sending IPI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1546260/+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
