[Kernel-packages] [Bug 1751835] Kdump console logs
*** This bug is a duplicate of bug 1743529 *** https://bugs.launchpad.net/bugs/1743529 Default Comment by Bridge ** Attachment added: "Kdump console logs" https://bugs.launchpad.net/bugs/1751835/+attachment/5071694/+files/kdump_failure_on_proposed_4.15.txt -- 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/1751835 Title: Ubuntu 18.04 kdump does not work on bionic-proposed 4.15 ppc64el with AC922 Status in The Ubuntu-power-systems project: New Status in kexec-tools package in Ubuntu: New Bug description: no guest was running, only Ubuntu 18.04 Host installed and trying kdump only on the host === tried on the ubuntu released proposed kernel 4.15.0-10-generic and kdump process was able to proceed (did not dump complete vmcore though) but hit issue, please check below console log root@ltciofvtr-spoon4:~# dmesg | grep -i crash [0.00] Reserving 6144MB of memory at 128MB for crashkernel (System RAM: 524288MB) [0.00] Kernel command line: root=UUID=749429f9-83b9-4776-9a3e-147e297cdf99 ro quiet splash crashkernel=6144M root@ltciofvtr-spoon4:~# dmesg | grep -i reserv [0.00] Reserving 6144MB of memory at 128MB for crashkernel (System RAM: 524288MB) [0.00] cma: Reserved 26224 MiB at 0x20399500 [0.00] DMA zone: 0 pages reserved [0.00] DMA zone: 0 pages reserved [0.00] Memory: 502952192K/536870912K available (13376K kernel code, 2048K rwdata, 3648K rodata, 4800K init, 3037K bss, 7065344K reserved, 26853376K cma-reserved) root@ltciofvtr-spoon4:~# uname -a Linux ltciofvtr-spoon4 4.15.0-10-generic #11-Ubuntu SMP Tue Feb 13 18:21:52 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux root@ltciofvtr-spoon4:~# kdump kdump kdump-config root@ltciofvtr-spoon4:~# kdump kdump kdump-config root@ltciofvtr-spoon4:~# kdump-config Usage: /usr/sbin/kdump-config {help|test|show|status|load|unload|savecore|propagate|symlinks kernel-version} root@ltciofvtr-spoon4:~# kdump-config status current state : ready to kdump root@ltciofvtr-spoon4:~# echo 1 > /proc/sys/kernel/sysrq root@ltciofvtr-spoon4:~# echo c > /proc/sysrq-trigger [ 164.604204] sysrq: SysRq : Trigger a crash [ 164.604264] Unable to handle kernel paging request for data at address 0x [ 164.604395] Faulting instruction address: 0xc07ea268 [ 164.604481] Oops: Kernel access of bad area, sig: 11 [#1] [ 164.604559] LE SMP NR_CPUS=2048 NUMA PowerNV [ 164.604628] Modules linked in: idt_89hpesx ofpart ipmi_powernv ipmi_devintf ipmi_msghandler ibmpowernv cmdlinepart vmx_crypto powernv_flash at24 uio_pdrv_genirq uio mtd opal_prd crct10dif_vpmsum sch_fq_codel ip_tables x_tables autofs4 mlx5_ib ib_core mlx5_core bnx2x ast i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops mdio ahci mlxfw libcrc32c crc32c_vpmsum drm tg3 libahci devlink [ 164.605176] CPU: 72 PID: 3444 Comm: bash Not tainted 4.15.0-10-generic #11-Ubuntu [ 164.605305] NIP: c07ea268 LR: c07eb1a8 CTR: c07ea240 [ 164.605413] REGS: c0002038f8c2f9f0 TRAP: 0300 Not tainted (4.15.0-10-generic) [ 164.605496] MSR: 90009033 CR: 2822 XER: 2004 [ 164.605641] CFAR: c07eb1a4 DAR: DSISR: 4200 SOFTE: 1 [ 164.605641] GPR00: c07eb1a8 c0002038f8c2fc70 c16ea600 0063 [ 164.605641] GPR04: c000203993d0ce18 c000203993d24368 90009033 0808 [ 164.605641] GPR08: 0007 0001 90001003 [ 164.605641] GPR12: c07ea240 c7a51800 08f7fbb8e008 [ 164.605641] GPR16: 08f7fb19e9f0 08f7fb231998 08f7fb2319d0 08f7fb268204 [ 164.605641] GPR20: 0001 7fffed1e1b54 [ 164.605641] GPR24: 7fffed1e1b50 08f7fb26afc4 c15e9930 0002 [ 164.605641] GPR28: 0063 0004 c1572a9c c15e9cd0 [ 164.606714] NIP [c07ea268] sysrq_handle_crash+0x28/0x30 [ 164.606796] LR [c07eb1a8] __handle_sysrq+0xf8/0x2c0 [ 164.606865] Call Trace: [ 164.606919] [c0002038f8c2fc70] [c07eb188] __handle_sysrq+0xd8/0x2c0 (unreliable) [ 164.607043] [c0002038f8c2fd10] [c07eb9b4] write_sysrq_trigger+0x64/0x90 [ 164.607152] [c0002038f8c2fd40] [c047c548] proc_reg_write+0x88/0xd0 [ 164.607252] [c0002038f8c2fd70] [c03cf8dc] __vfs_write+0x3c/0x70 [ 164.607347] [c0002038f8c2fd90] [c03cfb38] vfs_write+0xd8/0x220 [ 164.607445] [c0002038f8c2fde0] [c03cfe58] SyS_write+0x68/0x110 [ 164.607545] [c0002038f8c2fe30] [c000b184] system_call+0x58/0x6c [ 164.607640] Instruction dump:
[Kernel-packages] [Bug 1751835] Kdump console logs
Default Comment by Bridge ** Attachment added: "Kdump console logs" https://bugs.launchpad.net/bugs/1751835/+attachment/5063610/+files/kdump_failure_on_proposed_4.15.txt ** Changed in: ubuntu Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Package changed: ubuntu => kexec-tools (Ubuntu) -- 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/1751835 Title: Ubuntu 18.04 kdump does not work on bionic-proposed 4.15 ppc64el with AC922 Status in The Ubuntu-power-systems project: New Status in kexec-tools package in Ubuntu: New Bug description: no guest was running, only Ubuntu 18.04 Host installed and trying kdump only on the host === tried on the ubuntu released proposed kernel 4.15.0-10-generic and kdump process was able to proceed (did not dump complete vmcore though) but hit issue, please check below console log root@ltciofvtr-spoon4:~# dmesg | grep -i crash [0.00] Reserving 6144MB of memory at 128MB for crashkernel (System RAM: 524288MB) [0.00] Kernel command line: root=UUID=749429f9-83b9-4776-9a3e-147e297cdf99 ro quiet splash crashkernel=6144M root@ltciofvtr-spoon4:~# dmesg | grep -i reserv [0.00] Reserving 6144MB of memory at 128MB for crashkernel (System RAM: 524288MB) [0.00] cma: Reserved 26224 MiB at 0x20399500 [0.00] DMA zone: 0 pages reserved [0.00] DMA zone: 0 pages reserved [0.00] Memory: 502952192K/536870912K available (13376K kernel code, 2048K rwdata, 3648K rodata, 4800K init, 3037K bss, 7065344K reserved, 26853376K cma-reserved) root@ltciofvtr-spoon4:~# uname -a Linux ltciofvtr-spoon4 4.15.0-10-generic #11-Ubuntu SMP Tue Feb 13 18:21:52 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux root@ltciofvtr-spoon4:~# kdump kdump kdump-config root@ltciofvtr-spoon4:~# kdump kdump kdump-config root@ltciofvtr-spoon4:~# kdump-config Usage: /usr/sbin/kdump-config {help|test|show|status|load|unload|savecore|propagate|symlinks kernel-version} root@ltciofvtr-spoon4:~# kdump-config status current state : ready to kdump root@ltciofvtr-spoon4:~# echo 1 > /proc/sys/kernel/sysrq root@ltciofvtr-spoon4:~# echo c > /proc/sysrq-trigger [ 164.604204] sysrq: SysRq : Trigger a crash [ 164.604264] Unable to handle kernel paging request for data at address 0x [ 164.604395] Faulting instruction address: 0xc07ea268 [ 164.604481] Oops: Kernel access of bad area, sig: 11 [#1] [ 164.604559] LE SMP NR_CPUS=2048 NUMA PowerNV [ 164.604628] Modules linked in: idt_89hpesx ofpart ipmi_powernv ipmi_devintf ipmi_msghandler ibmpowernv cmdlinepart vmx_crypto powernv_flash at24 uio_pdrv_genirq uio mtd opal_prd crct10dif_vpmsum sch_fq_codel ip_tables x_tables autofs4 mlx5_ib ib_core mlx5_core bnx2x ast i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops mdio ahci mlxfw libcrc32c crc32c_vpmsum drm tg3 libahci devlink [ 164.605176] CPU: 72 PID: 3444 Comm: bash Not tainted 4.15.0-10-generic #11-Ubuntu [ 164.605305] NIP: c07ea268 LR: c07eb1a8 CTR: c07ea240 [ 164.605413] REGS: c0002038f8c2f9f0 TRAP: 0300 Not tainted (4.15.0-10-generic) [ 164.605496] MSR: 90009033 CR: 2822 XER: 2004 [ 164.605641] CFAR: c07eb1a4 DAR: DSISR: 4200 SOFTE: 1 [ 164.605641] GPR00: c07eb1a8 c0002038f8c2fc70 c16ea600 0063 [ 164.605641] GPR04: c000203993d0ce18 c000203993d24368 90009033 0808 [ 164.605641] GPR08: 0007 0001 90001003 [ 164.605641] GPR12: c07ea240 c7a51800 08f7fbb8e008 [ 164.605641] GPR16: 08f7fb19e9f0 08f7fb231998 08f7fb2319d0 08f7fb268204 [ 164.605641] GPR20: 0001 7fffed1e1b54 [ 164.605641] GPR24: 7fffed1e1b50 08f7fb26afc4 c15e9930 0002 [ 164.605641] GPR28: 0063 0004 c1572a9c c15e9cd0 [ 164.606714] NIP [c07ea268] sysrq_handle_crash+0x28/0x30 [ 164.606796] LR [c07eb1a8] __handle_sysrq+0xf8/0x2c0 [ 164.606865] Call Trace: [ 164.606919] [c0002038f8c2fc70] [c07eb188] __handle_sysrq+0xd8/0x2c0 (unreliable) [ 164.607043] [c0002038f8c2fd10] [c07eb9b4] write_sysrq_trigger+0x64/0x90 [ 164.607152] [c0002038f8c2fd40] [c047c548] proc_reg_write+0x88/0xd0 [ 164.607252] [c0002038f8c2fd70] [c03cf8dc] __vfs_write+0x3c/0x70 [ 164.607347] [c0002038f8c2fd90] [c03cfb38] vfs_write+0xd8/0x220 [ 164.607445] [c0002038f8c2fde0] [c03cfe58] SyS_write+0x68/0x110 [ 164.607545] [c0002038f8c2fe30]