[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
in case anyone's interested, the upstream fix is: commit c4f9c701f9b44299e6adbc58d1a4bb2c40383494 Author: Huang Ying Date: Thu Oct 15 20:06:07 2020 -0700 mm: fix a race during THP splitting -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Expired Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
this bug is present in the current upstream also (v5.8). Red Hat is working on the fix (ref: 1739593, private) -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Expired Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.649238] tdp_page_fault+0x12d/0x290
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Expired Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220 [kvm] Oct 29 13:51:25 vs09 kernel:
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
Please reproduce the problem, do a hard reset and then run this command: journalctl -b-1 > prev_boot.txt and send us the resulting file prev_boot.txt ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Incomplete Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel:
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
We don't know what triggered this bug. While the server was operational and hosting 5 virtual machines, we saw abnormal behavior to one of them and after a while the whole host became unresponsive due to high loads. We were unable to force shutdown guest vms due to device or resource busy error. We were only able to find a few more info from the quest vm that was first affected. Please find bellow. Oct 29 13:53:15 ws091 kernel: [201133.016407] INFO: rcu_sched detected stalls on CPUs/tasks: Oct 29 13:53:15 ws091 kernel: [201133.050472] 30-...0: (1 GPs behind) idle=83e/140/0 softirq=294262/294263 fqs=4910 Oct 29 13:53:15 ws091 kernel: [201133.053751] (detected by 7, t=15011 jiffies, g=3090541, c=3090540, q=8389) Oct 29 13:53:15 ws091 kernel: [201133.056359] Sending NMI from CPU 7 to CPUs 30: Oct 29 13:53:15 ws091 kernel: [201142.979012] rcu_sched kthread starved for 6707 jiffies! g3090541 c3090540 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=45 Oct 29 13:53:15 ws091 kernel: [201142.983752] rcu_sched I0 8 2 0x8000 Oct 29 13:53:15 ws091 kernel: [201142.983755] Call Trace: Oct 29 13:53:15 ws091 kernel: [201142.983763] __schedule+0x3d6/0x8b0 Oct 29 13:53:15 ws091 kernel: [201142.983765] schedule+0x36/0x80 Oct 29 13:53:15 ws091 kernel: [201142.983767] schedule_timeout+0x162/0x370 Oct 29 13:53:15 ws091 kernel: [201142.983770] ? __next_timer_interrupt+0xe0/0xe0 Oct 29 13:53:15 ws091 kernel: [201142.983774] rcu_gp_kthread+0x5b4/0x960 Oct 29 13:53:15 ws091 kernel: [201142.983779] kthread+0x105/0x140 Oct 29 13:53:15 ws091 kernel: [201142.983780] ? rcu_barrier_sched+0x10/0x10 Oct 29 13:53:15 ws091 kernel: [201142.983781] ? kthread_destroy_worker+0x50/0x50 Oct 29 13:53:15 ws091 kernel: [201142.983784] ret_from_fork+0x35/0x40 Oct 29 13:55:57 ws091 kernel: [201305.267245] INFO: task jbd2/vdc1-8:1412 blocked for more than 120 seconds. Oct 29 13:55:57 ws091 kernel: [201305.340061] Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:55:57 ws091 kernel: [201305.341300] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 29 13:55:57 ws091 kernel: [201305.342813] jbd2/vdc1-8 D0 1412 2 0x8000 Oct 29 13:55:57 ws091 kernel: [201305.342817] Call Trace: Oct 29 13:55:57 ws091 kernel: [201305.342831] __schedule+0x3d6/0x8b0 Oct 29 13:55:57 ws091 kernel: [201305.342834] schedule+0x36/0x80 Oct 29 13:55:57 ws091 kernel: [201305.342840] jbd2_journal_commit_transaction+0x241/0x1760 Oct 29 13:55:57 ws091 kernel: [201305.342846] ? __switch_to_asm+0x34/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342848] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342849] ? __switch_to_asm+0x34/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342851] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342853] ? __switch_to_asm+0x34/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342855] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342857] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342859] ? __switch_to_asm+0x34/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342860] ? __switch_to_asm+0x34/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342862] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342873] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342879] ? wait_woken+0x80/0x80 Oct 29 13:55:57 ws091 kernel: [201305.342882] ? __switch_to_asm+0x40/0x70 Oct 29 13:55:57 ws091 kernel: [201305.342890] ? lock_timer_base+0x75/0xa0 Oct 29 13:55:57 ws091 kernel: [201305.342895] kjournald2+0xc8/0x250 Oct 29 13:55:57 ws091 kernel: [201305.342897] ? kjournald2+0xc8/0x250 Oct 29 13:55:57 ws091 kernel: [201305.342899] ? wait_woken+0x80/0x80 Oct 29 13:55:57 ws091 kernel: [201305.342905] kthread+0x105/0x140 Oct 29 13:55:57 ws091 kernel: [201305.342907] ? commit_timeout+0x20/0x20 Oct 29 13:55:57 ws091 kernel: [201305.342909] ? kthread_destroy_worker+0x50/0x50 Oct 29 13:55:57 ws091 kernel: [201305.342911] ret_from_fork+0x35/0x40 Oct 29 13:55:57 ws091 kernel: [201305.343058] INFO: task kworker/u112:1:45667 blocked for more than 120 seconds. Oct 29 13:55:57 ws091 kernel: [201305.344520] Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:55:58 ws091 kernel: [201305.362862] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 29 13:55:58 ws091 kernel: [201305.376988] kworker/u112:1 D0 45667 2 0x8000 Oct 29 13:55:58 ws091 kernel: [201305.377000] Workqueue: writeback wb_workfn (flush-252:32) Oct 29 13:55:58 ws091 kernel: [201305.377002] Call Trace: Oct 29 13:55:58 ws091 kernel: [201305.377007] __schedule+0x3d6/0x8b0 Oct 29 13:55:58 ws091 kernel: [201305.377016] ? blk_mq_sched_insert_requests+0x7a/0x80 Oct 29 13:55:58 ws091 kernel: [201305.377017] schedule+0x36/0x80 Oct 29 13:55:58 ws091 kernel: [201305.377026] wait_transaction_locked+0x8a/0xd0 Oct 29 13:55:58 ws091 kernel: [201305.377029]
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem. We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures. At a minimum, we need: 1. The specific steps or actions you took that caused you to encounter the problem. 2. The behavior you expected. 3. The behavior you actually encountered (in as much detail as possible). Thanks! ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Incomplete Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
apport information ** Tags added: apport-collected xenial ** Description changed: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.649238] tdp_page_fault+0x12d/0x290 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.650766] ? vmexit_fill_RSB+0x10/0x40 [kvm_intel] Oct 29 13:51:25 vs09 kernel: [201179.652323] kvm_mmu_page_fault+0x62/0x170 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.653835] handle_ept_violation+0xae/0x140 [kvm_intel] Oct 29 13:51:25 vs09 kernel: [201179.655337]
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem? Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Incomplete Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
It seems to have a 'kvm' relation. -- Cristian Aravena Romero (caravena) -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Incomplete Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.649238] tdp_page_fault+0x12d/0x290 [kvm] Oct 29 13:51:25 vs09 kernel:
[Kernel-packages] [Bug 1800509] Re: unable to handle kernel NULL pointer dereference at 0000000000000007
** Package changed: ubuntu => linux (Ubuntu) -- 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/1800509 Title: unable to handle kernel NULL pointer dereference at 0007 Status in linux package in Ubuntu: Incomplete Bug description: ```Oct 29 13:51:25 vs09 kernel: [201179.645520] BUG: unable to handle kernel NULL pointer dereference at 0007 Oct 29 13:51:25 vs09 kernel: [201179.645601] IP: split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.645633] PGD 0 P4D 0 Oct 29 13:51:25 vs09 kernel: [201179.645660] Oops: 0002 [#1] SMP PTI Oct 29 13:51:25 vs09 kernel: [201179.645689] Modules linked in: vhost_net vhost tap 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 ipt_REJECT nf_reject_ipv4 xt_tcpudp ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp intel_cstate ipmi_ssif joydev input_leds intel_rapl_perf bridge stp llc mei_me lpc_ich mei ioatdma shpchp ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad mac_hid kvm_intel kvm irqbypass ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov Oct 29 13:51:25 vs09 kernel: [201179.646180] async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ast crct10dif_pclmul hid_generic crc32_pclmul ttm ghash_clmulni_intel pcbc drm_kms_helper usbhid syscopyarea igb sysfillrect aesni_intel sysimgblt dca aes_x86_64 crypto_simd fb_sys_fops glue_helper i2c_algo_bit ahci ptp drm mxm_wmi hid cryptd libahci pps_core wmi Oct 29 13:51:25 vs09 kernel: [201179.646418] CPU: 15 PID: 4321 Comm: qemu-system-x86 Not tainted 4.15.0-38-generic #41~16.04.1-Ubuntu Oct 29 13:51:25 vs09 kernel: [201179.646478] Hardware name: Supermicro SYS-6028R-TR/X10DRi, BIOS 2.1 09/13/2016 Oct 29 13:51:25 vs09 kernel: [201179.646531] RIP: 0010:split_swap_cluster+0x4f/0x70 Oct 29 13:51:25 vs09 kernel: [201179.646567] RSP: 0018:a9c9f77e3398 EFLAGS: 00010246 Oct 29 13:51:25 vs09 kernel: [201179.646606] RAX: RBX: 00064566 RCX: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646655] RDX: a9c9a0001000 RSI: 05cc5fff RDI: 00064566 Oct 29 13:51:25 vs09 kernel: [201179.646703] RBP: a9c9f77e33a0 R08: 0001 R09: 9140bffd4d00 Oct 29 13:51:25 vs09 kernel: [201179.646752] R10: 9140bffd4000 R11: 0001 R12: e5fdb3178000 Oct 29 13:51:25 vs09 kernel: [201179.646800] R13: e5fdb3178080 R14: e5fdb318 R15: e5fdb3178040 Oct 29 13:51:25 vs09 kernel: [201179.646850] FS: 7fb2a27fc700() GS:913fbee4() knlGS: Oct 29 13:51:25 vs09 kernel: [201179.646905] CS: 0010 DS: ES: CR0: 80050033 Oct 29 13:51:25 vs09 kernel: [201179.646946] CR2: 0007 CR3: 003f691b4006 CR4: 003626e0 Oct 29 13:51:25 vs09 kernel: [201179.646995] DR0: DR1: DR2: Oct 29 13:51:25 vs09 kernel: [201179.647043] DR3: DR6: fffe0ff0 DR7: 0400 Oct 29 13:51:25 vs09 kernel: [201179.647091] Call Trace: Oct 29 13:51:25 vs09 kernel: [201179.647119] split_huge_page_to_list+0x76e/0x7f0 Oct 29 13:51:25 vs09 kernel: [201179.647156] deferred_split_scan+0x177/0x2d0 Oct 29 13:51:25 vs09 kernel: [201179.647191] shrink_slab.part.50+0x20b/0x440 Oct 29 13:51:25 vs09 kernel: [201179.647226] shrink_node+0x2fc/0x310 Oct 29 13:51:25 vs09 kernel: [201179.647257] do_try_to_free_pages+0xee/0x360 Oct 29 13:51:25 vs09 kernel: [201179.647290] try_to_free_pages+0xf1/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647324] __alloc_pages_slowpath+0x405/0xec0 Oct 29 13:51:25 vs09 kernel: [201179.647362] __alloc_pages_nodemask+0x265/0x280 Oct 29 13:51:25 vs09 kernel: [201179.647399] alloc_pages_vma+0x165/0x1e0 Oct 29 13:51:25 vs09 kernel: [201179.647431] do_huge_pmd_anonymous_page+0x167/0x710 Oct 29 13:51:25 vs09 kernel: [201179.647469] __handle_mm_fault+0xb1d/0x11e0 Oct 29 13:51:25 vs09 kernel: [201179.647504] handle_mm_fault+0xcc/0x1c0 Oct 29 13:51:25 vs09 kernel: [201179.647535] __get_user_pages+0x11d/0x6d0 Oct 29 13:51:25 vs09 kernel: [201179.647568] get_user_pages+0x42/0x50 Oct 29 13:51:25 vs09 kernel: [201179.647627] __gfn_to_pfn_memslot+0x18b/0x3b0 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.647691] try_async_pf+0x66/0x220 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.649238] tdp_page_fault+0x12d/0x290 [kvm] Oct 29 13:51:25 vs09 kernel: [201179.650766] ?
