There are many ways to corrupt stack or pointers to stack. Since this issue happens in out-of-tree mlx5 modules, it looks to me that where you shall look at.
Please let us know if you can reproduce this issue without any out-of- tree module. ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid ** Changed in: kunpeng920 Status: Incomplete => Invalid -- 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/1935583 Title: Kernel panic on Bionic 5.4.0-47-generic Status in kunpeng920: Invalid Status in linux package in Ubuntu: Invalid Bug description: [Bug Description] Stack overflow in Kunpeng 920 32cores server, cause system reboot in production environment every month [Steps to Reproduce] 1)I cannot reproduce coz its a low-probability event [Actual Results] [1474521.296779] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.323300] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.349890] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.376451] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.411383] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.438042] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.455965] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.481140] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.508051] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.534519] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.561541] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.565243] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.596849] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.623516] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.659077] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.677128] Kernel panic - not syncing: corrupted stack end detected inside scheduler [1474521.685108] CPU: 7 PID: 5387 Comm: query_event Kdump: loaded Tainted: G OE 5.4.0-47-generic #51~18.04.1-Ubuntu [1474521.686201] ACPI CPPC: PCC check channel failed for ss: 0. ret=-110 [1474521.689690] Unable to handle kernel paging request at virtual address ffff8027ce43b007 [1474521.689693] Mem abort info: [1474521.689695] ESR = 0x96000005 [1474521.689698] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.689700] SET = 0, FnV = 0 [1474521.689702] EA = 0, S1PTW = 0 [1474521.689703] Data abort info: [1474521.689705] ISV = 0, ISS = 0x00000005 [1474521.689706] CM = 0, WnR = 0 [1474521.689710] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.689712] [ffff8027ce43b007] pgd=00002027fffff003, pud=0000000000000000 [1474521.689719] Internal error: Oops: 96000005 [#1] SMP [1474521.689722] Modules linked in: binfmt_misc xt_MASQUERADE iptable_nat nf_nat xt_tcpudp xt_multiport xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter rpcsec_gss_krb5 nfsv4 nfs fscache bonding nls_iso8859_1 ipmi_ssif joydev input_leds hns_roce_hw_v2 ib_uverbs ipmi_si spi_dw_mmio ipmi_devintf ipmi_msghandler spi_dw hisi_dma cppc_cpufreq sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure mlx5_ib(OE) hibmc_drm realtek drm_vram_helper ttm drm_kms_helper hid_generic crct10dif_ce syscopyarea sysfillrect ghash_ce mlx5_core(OE) sysimgblt hisi_sas_v3_hw sha2_ce hns3 hisi_sas_main sha256_arm64 fb_sys_fops mlx_compat(OE) sha1_ce hclge libsas usbhid tls drm hid hnae3 megaraid_sas ahci [1474521.689802] scsi_transport_sas mlxfw(OE) gpio_dwapb aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [1474521.689814] CPU: 14 PID: 5899 Comm: tcp_upload Kdump: loaded Tainted: G OE 5.4.0-47-generic #51~18.04.1-Ubuntu [1474521.689816] Hardware name: [About Privacy Deleted], BIOS 1.39 06/11/2020 [1474521.689819] pstate: 00400009 (nzcv daif +PAN -UAO) [1474521.689831] pc : kmem_cache_alloc+0x4c/0x220 [1474521.689835] lr : kmem_cache_alloc+0x44/0x220 [1474521.689836] sp : ffff800010073b90 [1474521.689838] x29: ffff800010073b90 x28: 0000000000000001 [1474521.689841] x27: ffff0027b78270c0 x26: ffff2027cc2b0000 [1474521.689844] x25: 00000000000005ea x24: 0000000000000040 [1474521.689847] x23: ffff2027d3896000 x22: ffff800010c11a8c [1474521.689850] x21: 0000000000000a20 x20: 0000000000000007 [1474521.689852] x19: ffff2027d3896000 x18: 0000000000000014 [1474521.689856] x17: 00000000ea74f425 x16: 000000005fe3fcbf [1474521.689859] x15: 00000000f26bfafa x14: 683f9e854da8ab18 [1474521.689862] x13: e3274a9b1fac7e1b x12: 298175ef2f49b6e3 [1474521.689864] x11: 5ac56f1f37f55ef9 x10: 0000000000000040 [1474521.689867] x9 : 000000000000000a x8 : 0000000000000006 [1474521.689870] x7 : ffff800011b78908 x6 : ffff000000000000 [1474521.689873] x5 : 0000000000000000 x4 : ffff00279db94e2a [1474521.689875] x3 : ffff800010073c88 x2 : ffff800011b7a000 [1474521.689877] x1 : 0000000000000100 x0 : ffff8027ce43b000 [1474521.689880] Call trace: [1474521.689885] kmem_cache_alloc+0x4c/0x220 [1474521.689892] __build_skb+0x2c/0x88 [1474521.689896] build_skb+0x28/0x98 [1474521.690020] mlx5e_skb_from_cqe_linear+0x128/0x1c8 [mlx5_core] [1474521.690108] mlx5e_handle_rx_cqe+0x84/0x1c8 [mlx5_core] [1474521.690194] mlx5e_poll_rx_cq+0x174/0x9c8 [mlx5_core] [1474521.690282] mlx5e_napi_poll+0xec/0x5c0 [mlx5_core] [1474521.690287] net_rx_action+0x170/0x460 [1474521.690291] __do_softirq+0x11c/0x350 [1474521.690295] irq_exit+0xc0/0xc8 [1474521.690300] __handle_domain_irq+0x6c/0xc0 [1474521.690302] gic_handle_irq+0xec/0x2c4 [1474521.690305] el1_irq+0x104/0x1c0 [1474521.690310] __arch_copy_from_user+0x1b4/0x340 [1474521.690314] iov_iter_copy_from_user_atomic+0xe8/0x3a0 [1474521.690319] generic_perform_write+0xdc/0x1b0 [1474521.690355] nfs_file_write+0x110/0x238 [nfs] [1474521.690360] new_sync_write+0x108/0x1b0 [1474521.690363] __vfs_write+0x74/0x80 [1474521.690366] vfs_write+0xb8/0x1d8 [1474521.690369] ksys_write+0x74/0xf8 [1474521.690372] __arm64_sys_write+0x24/0x30 [1474521.690376] el0_svc_common.constprop.2+0x80/0x1e8 [1474521.690378] el0_svc_handler+0x34/0xa0 [1474521.690381] el0_svc+0x10/0x2c8 [1474521.690387] Code: f90023b9 97ffe654 f9400274 91002294 (f8606a99) [1474521.690392] ---[ end trace 0242a0b3e3a7dec1 ]--- [1474521.690728] Unable to handle kernel paging request at virtual address ffff8027ce2d0007 [1474521.690731] Mem abort info: [1474521.690732] ESR = 0x96000005 [1474521.690735] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.690737] SET = 0, FnV = 0 [1474521.690738] EA = 0, S1PTW = 0 [1474521.690740] Data abort info: [1474521.690741] ISV = 0, ISS = 0x00000005 [1474521.690743] CM = 0, WnR = 0 [1474521.690746] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.690749] [ffff8027ce2d0007] pgd=00002027fffff003, pud=0000000000000000 [1474521.691158] Unable to handle kernel paging request at virtual address ffff8027ce4bf007 [1474521.691161] Mem abort info: [1474521.691163] ESR = 0x96000005 [1474521.691165] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.691167] SET = 0, FnV = 0 [1474521.691169] EA = 0, S1PTW = 0 [1474521.691170] Data abort info: [1474521.691172] ISV = 0, ISS = 0x00000005 [1474521.691173] CM = 0, WnR = 0 [1474521.691177] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.691179] [ffff8027ce4bf007] pgd=00002027fffff003, pud=0000000000000000 [1474521.691217] Unable to handle kernel paging request at virtual address ffff8027ce396007 [1474521.691244] Mem abort info: [1474521.691250] ESR = 0x96000005 [1474521.691255] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.691259] SET = 0, FnV = 0 [1474521.691263] EA = 0, S1PTW = 0 [1474521.691267] Data abort info: [1474521.691272] ISV = 0, ISS = 0x00000005 [1474521.691275] CM = 0, WnR = 0 [1474521.691281] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.691287] [ffff8027ce396007] pgd=00002027fffff003, pud=0000000000000000 [1474521.691458] Unable to handle kernel paging request at virtual address ffff8027ce49e007 [1474521.691464] Mem abort info: [1474521.691467] ESR = 0x96000005 [1474521.691471] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.691474] SET = 0, FnV = 0 [1474521.691477] EA = 0, S1PTW = 0 [1474521.691479] Data abort info: [1474521.691482] ISV = 0, ISS = 0x00000005 [1474521.691484] CM = 0, WnR = 0 [1474521.691489] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.691492] [ffff8027ce49e007] pgd=00002027fffff003, pud=0000000000000000 [1474521.692576] Unable to handle kernel paging request at virtual address ffff8027ce375007 [1474521.692596] Mem abort info: [1474521.692601] ESR = 0x96000005 [1474521.692605] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.692606] SET = 0, FnV = 0 [1474521.692610] EA = 0, S1PTW = 0 [1474521.692611] Data abort info: [1474521.692615] ISV = 0, ISS = 0x00000005 [1474521.692617] CM = 0, WnR = 0 [1474521.692621] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.692624] [ffff8027ce375007] pgd=00002027fffff003, pud=0000000000000000 [1474521.693226] Unable to handle kernel paging request at virtual address ffff8027ce2f1007 [1474521.693229] Mem abort info: [1474521.693231] ESR = 0x96000005 [1474521.693233] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.693235] SET = 0, FnV = 0 [1474521.693236] EA = 0, S1PTW = 0 [1474521.693238] Data abort info: [1474521.693239] ISV = 0, ISS = 0x00000005 [1474521.693241] CM = 0, WnR = 0 [1474521.693244] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.693246] [ffff8027ce2f1007] pgd=00002027fffff003, pud=0000000000000000 [1474521.693912] Unable to handle kernel paging request at virtual address ffff8027ce312007 [1474521.693925] Mem abort info: [1474521.693928] ESR = 0x96000005 [1474521.693935] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.693939] SET = 0, FnV = 0 [1474521.693944] EA = 0, S1PTW = 0 [1474521.693948] Data abort info: [1474521.693951] ISV = 0, ISS = 0x00000005 [1474521.693955] CM = 0, WnR = 0 [1474521.693961] Unable to handle kernel paging request at virtual address ffff8027ce28e007 [1474521.693966] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.693969] Mem abort info: [1474521.693973] [ffff8027ce312007] pgd=00002027fffff003 [1474521.693976] ESR = 0x96000005 [1474521.693978] , pud=0000000000000000 [1474521.693984] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.693988] SET = 0, FnV = 0 [1474521.693992] EA = 0, S1PTW = 0 [1474521.693994] Data abort info: [1474521.693998] ISV = 0, ISS = 0x00000005 [1474521.694002] CM = 0, WnR = 0 [1474521.694007] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.694011] [ffff8027ce28e007] pgd=00002027fffff003, pud=0000000000000000 [1474521.694596] Unable to handle kernel paging request at virtual address ffff8027ce41a007 [1474521.694611] Mem abort info: [1474521.694614] ESR = 0x96000005 [1474521.694621] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.694624] SET = 0, FnV = 0 [1474521.694627] EA = 0, S1PTW = 0 [1474521.694631] Data abort info: [1474521.694636] ISV = 0, ISS = 0x00000005 [1474521.694638] CM = 0, WnR = 0 [1474521.694643] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.694646] [ffff8027ce41a007] pgd=00002027fffff003, pud=0000000000000000 [1474521.694940] Unable to handle kernel paging request at virtual address ffff8027ce47d007 [1474521.694954] Mem abort info: [1474521.694961] ESR = 0x96000005 [1474521.694967] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.694970] SET = 0, FnV = 0 [1474521.694972] EA = 0, S1PTW = 0 [1474521.694975] Data abort info: [1474521.694980] ISV = 0, ISS = 0x00000005 [1474521.694987] Unable to handle kernel paging request at virtual address ffff8027ce4e0007 [1474521.694990] CM = 0, WnR = 0 [1474521.694995] Mem abort info: [1474521.695000] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.695001] ESR = 0x96000005 [1474521.695004] [ffff8027ce47d007] pgd=00002027fffff003 [1474521.695009] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.695010] , pud=0000000000000000 [1474521.695015] SET = 0, FnV = 0 [1474521.695020] EA = 0, S1PTW = 0 [1474521.695024] Data abort info: [1474521.695027] ISV = 0, ISS = 0x00000005 [1474521.695032] CM = 0, WnR = 0 [1474521.695036] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.695041] [ffff8027ce4e0007] pgd=00002027fffff003, pud=0000000000000000 [1474521.695824] Unable to handle kernel paging request at virtual address ffff8027ce333007 [1474521.695836] Mem abort info: [1474521.695840] ESR = 0x96000005 [1474521.695844] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.695849] SET = 0, FnV = 0 [1474521.695852] EA = 0, S1PTW = 0 [1474521.695855] Data abort info: [1474521.695860] ISV = 0, ISS = 0x00000005 [1474521.695864] CM = 0, WnR = 0 [1474521.695868] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.695871] [ffff8027ce333007] pgd=00002027fffff003, pud=0000000000000000 [1474521.696447] Hardware name: [About Privacy Deleted], BIOS 1.39 06/11/2020 [1474521.696449] Call trace: [1474521.696458] dump_backtrace+0x0/0x1a8 [1474521.696462] show_stack+0x24/0x30 [1474521.696466] dump_stack+0xbc/0x118 [1474521.696469] panic+0x160/0x3a0 [1474521.696475] __schedule+0x788/0x790 [1474521.696479] schedule+0x38/0xa8 [1474521.696482] schedule_hrtimeout_range_clock+0x98/0x108 [1474521.696485] schedule_hrtimeout_range+0x38/0x48 [1474521.696490] do_select+0x448/0x658 [1474521.696493] core_sys_select+0x478/0x990 [1474521.696496] __arm64_sys_pselect6+0x2d0/0x7a0 [1474521.696500] el0_svc_common.constprop.2+0x80/0x1e8 [1474521.696502] el0_svc_handler+0x34/0xa0 [1474521.696505] el0_svc+0x10/0x2c8 [1474521.696549] SMP: stopping secondary CPUs [1474521.696987] Unable to handle kernel paging request at virtual address ffff8027ce3b7007 [1474521.696999] Mem abort info: [1474521.697001] ESR = 0x96000005 [1474521.697009] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.697012] SET = 0, FnV = 0 [1474521.697016] EA = 0, S1PTW = 0 [1474521.697020] Data abort info: [1474521.697024] ISV = 0, ISS = 0x00000005 [1474521.697027] CM = 0, WnR = 0 [1474521.697034] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.697039] [ffff8027ce3b7007] pgd=00002027fffff003, pud=0000000000000000 [1474521.701868] Unable to handle kernel paging request at virtual address ffff8027ce2af007 [1474521.701878] Mem abort info: [1474521.701881] ESR = 0x96000005 [1474521.701885] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.701886] SET = 0, FnV = 0 [1474521.701890] EA = 0, S1PTW = 0 [1474521.701892] Data abort info: [1474521.701895] ISV = 0, ISS = 0x00000005 [1474521.701897] CM = 0, WnR = 0 [1474521.701901] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.701905] [ffff8027ce2af007] pgd=00002027fffff003, pud=0000000000000000 [1474521.705040] Unable to handle kernel paging request at virtual address ffff2028b64886ff [1474521.705187] Unable to handle kernel paging request at virtual address ffff8027ce45c007 [1474521.705189] Mem abort info: [1474521.705191] ESR = 0x96000005 [1474521.705194] EC = 0x25: DABT (current EL), IL = 32 bits [1474521.705196] SET = 0, FnV = 0 [1474521.705197] EA = 0, S1PTW = 0 [1474521.705198] Data abort info: [1474521.705200] ISV = 0, ISS = 0x00000005 [1474521.705201] CM = 0, WnR = 0 [1474521.705204] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000014ac000 [1474521.705206] [ffff8027ce45c007] pgd=00002027fffff003, pud=0000000000000000 [1474522.786325] SMP: failed to stop secondary CPUs 0-6,8-13,15-47 [1474522.791443] Starting crashdump kernel... [1474522.791447] ------------[ cut here ]------------ [1474522.791448] Some CPUs may be stale, kdump will be unreliable. [1474522.791482] WARNING: CPU: 7 PID: 5387 at /build/linux-hwe-5.4-E9a0r6/linux-hwe-5.4-5.4.0/arch/arm64/kernel/machine_kexec.c:156 machine_kexec+0x58/0x418 [1474522.791485] Modules linked in: binfmt_misc xt_MASQUERADE iptable_nat nf_nat xt_tcpudp xt_multiport xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bpfilter rpcsec_gss_krb5 nfsv4 nfs fscache bonding nls_iso8859_1 ipmi_ssif joydev input_leds hns_roce_hw_v2 ib_uverbs ipmi_si spi_dw_mmio ipmi_devintf ipmi_msghandler spi_dw hisi_dma cppc_cpufreq sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure mlx5_ib(OE) hibmc_drm realtek drm_vram_helper ttm drm_kms_helper hid_generic crct10dif_ce syscopyarea sysfillrect ghash_ce mlx5_core(OE) sysimgblt hisi_sas_v3_hw sha2_ce hns3 hisi_sas_main sha256_arm64 fb_sys_fops mlx_compat(OE) sha1_ce hclge libsas usbhid tls drm hid hnae3 megaraid_sas ahci [1474522.791658] scsi_transport_sas mlxfw(OE) gpio_dwapb aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [1474522.791679] CPU: 7 PID: 5387 Comm: query_event Kdump: loaded Tainted: G D OE 5.4.0-47-generic #51~18.04.1-Ubuntu [1474522.791681] Hardware name: [About Privacy Deleted], BIOS 1.39 06/11/2020 [1474522.791684] pstate: 40400089 (nZcv daIf +PAN -UAO) [1474522.791688] pc : machine_kexec+0x58/0x418 [1474522.791692] lr : machine_kexec+0x58/0x418 [1474522.791693] sp : ffff8000284b3460 [1474522.791695] x29: ffff8000284b3460 x28: 0000000000000000 [1474522.791698] x27: 0000000000000000 x26: ffff8000284b3cd8 [1474522.791700] x25: 0000000000000000 x24: ffff800011b78000 [1474522.791702] x23: ffff800011df0000 x22: ffff0027d8c13000 [1474522.791705] x21: 0000000000000000 x20: ffff800011baa000 [1474522.791707] x19: ffff0027d8c13000 x18: ffffffffffffffff [1474522.791709] x17: 0000000000000000 x16: 0000000000000000 [1474522.791711] x15: ffff800011b78908 x14: 0000000060000089 [1474522.791714] x13: ffff8000101d34c0 x12: ffff800011b9e000 [1474522.791716] x11: 0000000000000000 x10: ffff800011dab000 [1474522.791718] x9 : 0000000000000000 x8 : ffff2027d81a7533 [1474522.791720] x7 : 0000000000000000 x6 : ffff0027df9d1248 [1474522.791722] x5 : 0000000000000007 x4 : ffff0027df9d1248 [1474522.791724] x3 : 0000000000000006 x2 : 0000000000000007 [1474522.791727] x1 : ed5ea55acfa5ca00 x0 : 0000000000000000 [1474522.791730] Call trace: [1474522.791735] machine_kexec+0x58/0x418 [1474522.791743] __crash_kexec+0x84/0x130 [1474522.791747] panic+0x17c/0x3a0 [1474522.791752] __schedule+0x788/0x790 [1474522.791755] schedule+0x38/0xa8 [1474522.791758] schedule_hrtimeout_range_clock+0x98/0x108 [1474522.791760] schedule_hrtimeout_range+0x38/0x48 [1474522.791765] do_select+0x448/0x658 [1474522.791768] core_sys_select+0x478/0x990 [1474522.791772] __arm64_sys_pselect6+0x2d0/0x7a0 [1474522.791775] el0_svc_common.constprop.2+0x80/0x1e8 [1474522.791777] el0_svc_handler+0x34/0xa0 [1474522.791783] el0_svc+0x10/0x2c8 [1474522.791785] ---[ end trace 0242a0b3e3a7dec2 ]--- [1474522.791791] Bye! [Additional information] Ubuntu 18.04.5 kernel 5.4.0-47-generic [Resolution] To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1935583/+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