** Package changed: ubuntu => linux (Ubuntu) ** Description changed:
Description If you run ndctl create-namespace simultaneously on every cpu on a 72 cpu system, for exactly the same namespace, things break. Shocking, I know. I've attached the script and the panic. Not high priority, I don't think. I tried to attach the shell script, but your email server rejected it. So, it's inline below. Search for thrash-ns.sh. Cheers, Jeff [ 71.912227] -----------[ cut here ]----------- [ 71.935600] WARNING: CPU: 39 PID: 1039 at fs/sysfs/group.c:237 sysfs_remove_group+0x8e/0x90 [ 71.978797] sysfs group 'power' not found for kobject 'btt0.1' [ 72.004940] 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 ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul vfat ghash_clmulni_intel fat pcbc aesni_intel nd_pmem crypto_simd ipmi_si glue_helper dax_pmem iTCO_wdt nd_btt iTCO_vendor_support dax cryptd ipmi_devintf hpwdt lpc_ich hpilo pcspkr i2c_i801 ioatdma sg ipmi_msghandler mfd_core wmi shpchp dca nfit acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs sr_mod cdrom sd_mod mgag200 i2c_algo_bit drm_kms_helper syscopyarea [ 72.326921] sysfillrect sysimgblt fb_sys_fops ttm bnx2x mdio ahci tg3 drm hpsa libahci ptp nvme libata pps_core i2c_core libcrc32c crc32c_intel scsi_transport_sas nvme_core dm_mirror dm_region_hash dm_log dm_mod [ 72.411729] CPU: 39 PID: 1039 Comm: kworker/u145:2 Not tainted 4.11.0-rc1+ #25 [ 72.444221] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/05/2016 [ 72.486852] Workqueue: events_unbound async_run_entry_fn [ 72.512078] Call Trace: [ 72.523223] dump_stack+0x63/0x87 [ 72.538230] __warn+0xd1/0xf0 [ 72.551520] warn_slowpath_fmt+0x5f/0x80 [ 72.569169] ? kernfs_find_and_get_ns+0x48/0x60 [ 72.589568] sysfs_remove_group+0x8e/0x90 [ 72.607495] dpm_sysfs_remove+0x57/0x60 [ 72.624715] device_del+0x111/0x350 [ 72.640292] ? pick_next_task_fair+0x122/0x540 [ 72.660482] device_unregister+0x1a/0x60 [ 72.678191] nd_async_device_unregister+0x22/0x30 [ 72.699306] async_run_entry_fn+0x39/0x170 [ 72.717642] process_one_work+0x165/0x410 [ 72.735566] worker_thread+0x137/0x4c0 [ 72.752370] kthread+0x101/0x140 [ 72.766449] ? rescuer_thread+0x3b0/0x3b0 [ 72.784357] ? kthread_park+0x90/0x90 [ 72.800810] ret_from_fork+0x2c/0x40 [ 72.816960] --[ end trace cb734114d5364186 ]-- [ 72.837661] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 72.872912] IP: klist_put+0x1b/0x90 [ 72.888831] PGD 0 [ 72.888831] [ 72.904390] Oops: 0000 1 SMP [ 72.918698] 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 ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul vfat ghash_clmulni_intel fat pcbc aesni_intel nd_pmem crypto_simd ipmi_si glue_helper dax_pmem iTCO_wdt nd_btt iTCO_vendor_support dax cryptd ipmi_devintf hpwdt lpc_ich hpilo pcspkr i2c_i801 ioatdma sg ipmi_msghandler mfd_core wmi shpchp dca nfit acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs sr_mod cdrom sd_mod mgag200 i2c_algo_bit drm_kms_helper syscopyarea [ 73.245742] sysfillrect sysimgblt fb_sys_fops ttm bnx2x mdio ahci tg3 drm hpsa libahci ptp nvme libata pps_core i2c_core libcrc32c crc32c_intel scsi_transport_sas nvme_core dm_mirror dm_region_hash dm_log dm_mod [ 73.331485] CPU: 39 PID: 1039 Comm: kworker/u145:2 Tainted: G W 4.11.0-rc1+ #25 [ 73.370525] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/05/2016 [ 73.408108] Workqueue: events_unbound async_run_entry_fn [ 73.432199] task: ffff880465230000 task.stack: ffffc900061f4000 [ 73.458817] RIP: 0010:klist_put+0x1b/0x90 [ 73.479280] RSP: 0018:ffffc900061f7d68 EFLAGS: 00010246 [ 73.507441] RAX: ffff88017ccd4b40 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.539498] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 73.571576] RBP: ffffc900061f7d88 R08: 00000000fffffffe R09: 0000000000047417 [ 73.603526] R10: 0000000000000005 R11: 0000000000047416 R12: ffff88017ccd4b68 [ 73.635479] R13: ffff88017d558800 R14: 0000000000000001 R15: ffff880469cf44b0 [ 73.667484] FS: 0000000000000000(0000) GS:ffff88046f940000(0000) knlGS:0000000000000000 [ 73.703897] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.729599] CR2: 0000000000000020 CR3: 0000000001c09000 CR4: 00000000003406e0 [ 73.761604] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.793672] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.826387] Call Trace: [ 73.837735] klist_del+0xe/0x10 [ 73.852002] device_del+0x124/0x350 [ 73.867721] ? pick_next_task_fair+0x122/0x540 [ 73.887938] device_unregister+0x1a/0x60 [ 73.905498] nd_async_device_unregister+0x22/0x30 [ 73.926887] async_run_entry_fn+0x39/0x170 [ 73.945504] process_one_work+0x165/0x410 [ 73.963652] worker_thread+0x137/0x4c0 [ 73.981335] kthread+0x101/0x140 [ 73.998899] ? rescuer_thread+0x3b0/0x3b0 [ 74.018719] ? kthread_park+0x90/0x90 [ 74.034739] ret_from_fork+0x2c/0x40 [ 74.050752] Code: 74 a9 f6 40 f8 01 74 92 eb ea 66 0f 1f 44 00 00 55 48 89 e5 41 56 41 89 f6 41 55 41 54 49 89 fc 53 48 8b 1f 48 83 e3 fe 48 89 df <4c> 8b 6b 20 e8 ac fd 00 00 45 84 f6 75 3c 4d 8d 74 24 18 4c 89 [ 74.135750] RIP: klist_put+0x1b/0x90 RSP: ffffc900061f7d68 [ 74.160546] CR2: 0000000000000020 [ 74.175440] --[ end trace cb734114d5364187 ]-- [ 74.201137] Kernel panic - not syncing: Fatal exception [ 74.224782] Kernel Offset: disabled [ 74.246394] ---[ end Kernel panic - not syncing: Fatal exception Target Kernel:TBD - Target Release: 19.04 + Target Release: 19.10 ** Tags removed: intel-kernel-19.04 ** Tags added: intel-kernel-19.10 -- 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/1704437 Title: [Bug] Crystal Ridge - libnvdimm: debug create-namespace sysfs collision report from Jeff Status in intel: New Status in linux package in Ubuntu: Incomplete Bug description: Description If you run ndctl create-namespace simultaneously on every cpu on a 72 cpu system, for exactly the same namespace, things break. Shocking, I know. I've attached the script and the panic. Not high priority, I don't think. I tried to attach the shell script, but your email server rejected it. So, it's inline below. Search for thrash-ns.sh. Cheers, Jeff [ 71.912227] -----------[ cut here ]----------- [ 71.935600] WARNING: CPU: 39 PID: 1039 at fs/sysfs/group.c:237 sysfs_remove_group+0x8e/0x90 [ 71.978797] sysfs group 'power' not found for kobject 'btt0.1' [ 72.004940] 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 ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul vfat ghash_clmulni_intel fat pcbc aesni_intel nd_pmem crypto_simd ipmi_si glue_helper dax_pmem iTCO_wdt nd_btt iTCO_vendor_support dax cryptd ipmi_devintf hpwdt lpc_ich hpilo pcspkr i2c_i801 ioatdma sg ipmi_msghandler mfd_core wmi shpchp dca nfit acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs sr_mod cdrom sd_mod mgag200 i2c_algo_bit drm_kms_helper syscopyarea [ 72.326921] sysfillrect sysimgblt fb_sys_fops ttm bnx2x mdio ahci tg3 drm hpsa libahci ptp nvme libata pps_core i2c_core libcrc32c crc32c_intel scsi_transport_sas nvme_core dm_mirror dm_region_hash dm_log dm_mod [ 72.411729] CPU: 39 PID: 1039 Comm: kworker/u145:2 Not tainted 4.11.0-rc1+ #25 [ 72.444221] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/05/2016 [ 72.486852] Workqueue: events_unbound async_run_entry_fn [ 72.512078] Call Trace: [ 72.523223] dump_stack+0x63/0x87 [ 72.538230] __warn+0xd1/0xf0 [ 72.551520] warn_slowpath_fmt+0x5f/0x80 [ 72.569169] ? kernfs_find_and_get_ns+0x48/0x60 [ 72.589568] sysfs_remove_group+0x8e/0x90 [ 72.607495] dpm_sysfs_remove+0x57/0x60 [ 72.624715] device_del+0x111/0x350 [ 72.640292] ? pick_next_task_fair+0x122/0x540 [ 72.660482] device_unregister+0x1a/0x60 [ 72.678191] nd_async_device_unregister+0x22/0x30 [ 72.699306] async_run_entry_fn+0x39/0x170 [ 72.717642] process_one_work+0x165/0x410 [ 72.735566] worker_thread+0x137/0x4c0 [ 72.752370] kthread+0x101/0x140 [ 72.766449] ? rescuer_thread+0x3b0/0x3b0 [ 72.784357] ? kthread_park+0x90/0x90 [ 72.800810] ret_from_fork+0x2c/0x40 [ 72.816960] --[ end trace cb734114d5364186 ]-- [ 72.837661] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 72.872912] IP: klist_put+0x1b/0x90 [ 72.888831] PGD 0 [ 72.888831] [ 72.904390] Oops: 0000 1 SMP [ 72.918698] 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 ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter intel_rapl sb_edac edac_core x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul vfat ghash_clmulni_intel fat pcbc aesni_intel nd_pmem crypto_simd ipmi_si glue_helper dax_pmem iTCO_wdt nd_btt iTCO_vendor_support dax cryptd ipmi_devintf hpwdt lpc_ich hpilo pcspkr i2c_i801 ioatdma sg ipmi_msghandler mfd_core wmi shpchp dca nfit acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs sr_mod cdrom sd_mod mgag200 i2c_algo_bit drm_kms_helper syscopyarea [ 73.245742] sysfillrect sysimgblt fb_sys_fops ttm bnx2x mdio ahci tg3 drm hpsa libahci ptp nvme libata pps_core i2c_core libcrc32c crc32c_intel scsi_transport_sas nvme_core dm_mirror dm_region_hash dm_log dm_mod [ 73.331485] CPU: 39 PID: 1039 Comm: kworker/u145:2 Tainted: G W 4.11.0-rc1+ #25 [ 73.370525] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/05/2016 [ 73.408108] Workqueue: events_unbound async_run_entry_fn [ 73.432199] task: ffff880465230000 task.stack: ffffc900061f4000 [ 73.458817] RIP: 0010:klist_put+0x1b/0x90 [ 73.479280] RSP: 0018:ffffc900061f7d68 EFLAGS: 00010246 [ 73.507441] RAX: ffff88017ccd4b40 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.539498] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 73.571576] RBP: ffffc900061f7d88 R08: 00000000fffffffe R09: 0000000000047417 [ 73.603526] R10: 0000000000000005 R11: 0000000000047416 R12: ffff88017ccd4b68 [ 73.635479] R13: ffff88017d558800 R14: 0000000000000001 R15: ffff880469cf44b0 [ 73.667484] FS: 0000000000000000(0000) GS:ffff88046f940000(0000) knlGS:0000000000000000 [ 73.703897] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.729599] CR2: 0000000000000020 CR3: 0000000001c09000 CR4: 00000000003406e0 [ 73.761604] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.793672] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.826387] Call Trace: [ 73.837735] klist_del+0xe/0x10 [ 73.852002] device_del+0x124/0x350 [ 73.867721] ? pick_next_task_fair+0x122/0x540 [ 73.887938] device_unregister+0x1a/0x60 [ 73.905498] nd_async_device_unregister+0x22/0x30 [ 73.926887] async_run_entry_fn+0x39/0x170 [ 73.945504] process_one_work+0x165/0x410 [ 73.963652] worker_thread+0x137/0x4c0 [ 73.981335] kthread+0x101/0x140 [ 73.998899] ? rescuer_thread+0x3b0/0x3b0 [ 74.018719] ? kthread_park+0x90/0x90 [ 74.034739] ret_from_fork+0x2c/0x40 [ 74.050752] Code: 74 a9 f6 40 f8 01 74 92 eb ea 66 0f 1f 44 00 00 55 48 89 e5 41 56 41 89 f6 41 55 41 54 49 89 fc 53 48 8b 1f 48 83 e3 fe 48 89 df <4c> 8b 6b 20 e8 ac fd 00 00 45 84 f6 75 3c 4d 8d 74 24 18 4c 89 [ 74.135750] RIP: klist_put+0x1b/0x90 RSP: ffffc900061f7d68 [ 74.160546] CR2: 0000000000000020 [ 74.175440] --[ end trace cb734114d5364187 ]-- [ 74.201137] Kernel panic - not syncing: Fatal exception [ 74.224782] Kernel Offset: disabled [ 74.246394] ---[ end Kernel panic - not syncing: Fatal exception Target Kernel:TBD Target Release: 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1704437/+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
