Are you still investigating this bug to figure out what patches needs to be backported to fix this issue? Could you please post the list of patches that fix this issue? Please note that the SRU process is currently delayed due to security patches for Spectre and Meltdown.
-- 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/1739498 Title: Ubuntu 17.10 crashes on vmalloc.c Status in The Ubuntu-power-systems project: Triaged Status in linux package in Ubuntu: Triaged Bug description: == Comment: #0 - Breno Leitao - 2017-12-19 09:48:10 == When running Ubuntu 17.10 on POWER9, I got the following error: [409038.118908] WARNING: CPU: 47 PID: 294 at /build/linux-LIHoWc/linux-4.13.0/mm/vmalloc.c:2527 pcpu_get_vm_areas+0x62c/0x660 [409038.118909] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter kvm_hv kvm at24 ofpart ipmi_powernv ipmi_devintf ipmi_msghandler cmdlinepart powernv_flash uio_pdrv_genirq uio mtd vmx_crypto ibmpowernv crct10dif_vpmsum opal_prd binfmt_misc ip_tables x_tables autofs4 crc32c_vpmsum ast i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm tg3 ahci libahci [409038.118933] CPU: 47 PID: 294 Comm: kworker/47:0 Tainted: G W 4.13.0-12-generic #13-Ubuntu [409038.118934] Workqueue: events pcpu_balance_workfn [409038.118936] task: c000003fe3cdcc00 task.stack: c000003fe3be0000 [409038.118937] NIP: c00000000032c1fc LR: c0000000002f5fd4 CTR: 0000000000000000 [409038.118937] REGS: c000003fe3be3810 TRAP: 0700 Tainted: G W (4.13.0-12-generic) [409038.118938] MSR: 900000000282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> [409038.118944] CR: 24024828 XER: 20040000 [409038.118944] CFAR: c00000000032bdb8 SOFTE: 1 GPR00: 000020000df00000 c000003fe3be3a90 c0000000015e3000 c000203fff6b6880 GPR04: c000203fff223608 0000000000000008 c000203fff6b6888 0000000000000000 GPR08: 000020000df00000 0000080000000000 0000000001600000 c000203fff6b6888 GPR12: 0000000000000002 c00000000faded80 c000000000f6c050 c000003fe3be3bc0 GPR16: 0000000000100000 0000000000000000 c00000000189daf8 c000203fff223608 GPR20: 000020000f500000 c000203fff2235f8 c000203fff223600 0000000000000000 GPR24: 0000000000000000 c000203fff6b6888 0000000000000001 000020000f500000 GPR28: 0000000000000002 00000000000fffff d000080000000000 d000000000000000 [409038.118963] NIP [c00000000032c1fc] pcpu_get_vm_areas+0x62c/0x660 [409038.118964] LR [c0000000002f5fd4] pcpu_create_chunk+0xb4/0x1b0 [409038.118965] Call Trace: [409038.118966] [c000003fe3be3a90] [c000003fe3be3ad0] 0xc000003fe3be3ad0 (unreliable) [409038.118968] [c000003fe3be3b60] [c0000000002f5fd4] pcpu_create_chunk+0xb4/0x1b0 [409038.118970] [c000003fe3be3ba0] [c0000000002f7890] pcpu_balance_workfn+0x600/0x960 [409038.118972] [c000003fe3be3ca0] [c0000000001205d8] process_one_work+0x298/0x5a0 [409038.118975] [c000003fe3be3d30] [c000000000120968] worker_thread+0x88/0x620 [409038.118977] [c000003fe3be3dc0] [c00000000012980c] kthread+0x1ac/0x1c0 [409038.118979] [c000003fe3be3e30] [c00000000000b4e8] ret_from_kernel_thread+0x5c/0x74 [409038.118980] Instruction dump: [409038.118981] eae30000 4191fad0 7ed3b378 e9210030 7efbbb78 7c791b78 3b400000 e9530000 ---uname output--- 4.13.0-12-generic == Comment: #3 - ANEESH K. K V - 2017-12-20 05:59:13 == https://lkml.kernel.org/r/1501583364-14909-1-git-send-email-...@ellerman.id.au The above may be related? Related discussions https://lkml.kernel.org/r/20170724134240.gl25...@dhcp22.suse.cz -aneesh == Comment: #4 - Breno Leitao - 2017-12-20 09:48:07 == I just tested with kernel 4.15.0-041500rc4 and I didn't see a problem so far. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1739498/+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
