Even after restart the kernel module the error continues, suggesting the emulation is likely the root cause.
-- 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/1855177 Title: qemu nvdimm virtualization + linux 5.3.0-24-generic kernel PROBE ERROR Status in linux package in Ubuntu: Confirmed Status in qemu package in Ubuntu: Confirmed Status in linux source package in Focal: Confirmed Status in qemu source package in Focal: Confirmed Bug description: I got a probe error for pfn1.0 (from both pfn0.0 and pfn1.0) when dealing with ndctl: ---- [11257.765457] memory add fail, invalid altmap [11257.765489] WARNING: CPU: 6 PID: 5680 at arch/x86/mm/init_64.c:852 add_pages+0x5d/0x70 [11257.765489] Modules linked in: nls_iso8859_1 edac_mce_amd crct10dif_pclmul crc32_pclmul dax_pmem_compat device_dax dax_pmem_core nd_pmem nd_btt ghash_clmulni_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper input_leds joydev mac_hid nfit serio_raw qemu_fw_cfg sch_fq_codel ip_tables x_tables autofs4 virtio_net net_failover psmouse failover pata_acpi virtio_blk i2c_piix4 floppy [11257.765505] CPU: 6 PID: 5680 Comm: ndctl Not tainted 5.3.0-24-generic #26-Ubuntu [11257.765505] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [11257.765507] RIP: 0010:add_pages+0x5d/0x70 [11257.765509] Code: 33 c2 01 76 20 48 89 15 99 33 c2 01 48 89 15 a2 33 c2 01 48 c1 e2 0c 48 03 15 97 96 39 01 48 89 15 48 0e c2 01 5b 41 5c 5d c3 <0f> 0b eb ba 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 0f 1f 44 [11257.765509] RSP: 0018:ffffa360c09dfbf0 EFLAGS: 00010282 [11257.765510] RAX: 00000000ffffffea RBX: 000000000017ffe0 RCX: 0000000000000000 [11257.765511] RDX: 0000000000000000 RSI: ffff8acb7db17448 RDI: ffff8acb7db17448 [11257.765512] RBP: ffffa360c09dfc00 R08: ffff8acb7db17448 R09: 0000000000000004 [11257.765512] R10: 0000000000000000 R11: 0000000000000001 R12: 000000000003fe20 [11257.765513] R13: 0000000000000001 R14: ffffa360c09dfc48 R15: ffff8acb7a7226f8 [11257.765515] FS: 00007febc9fd6bc0(0000) GS:ffff8acb7db00000(0000) knlGS:0000000000000000 [11257.765516] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [11257.765517] CR2: 000055eec8aab398 CR3: 000000013a8fa000 CR4: 00000000000406e0 [11257.765519] Call Trace: [11257.765523] arch_add_memory+0x41/0x50 [11257.765525] devm_memremap_pages+0x47c/0x640 [11257.765529] pmem_attach_disk+0x173/0x610 [nd_pmem] [11257.765531] ? devm_memremap+0x67/0xa0 [11257.765532] nd_pmem_probe+0x7f/0xa0 [nd_pmem] [11257.765542] nvdimm_bus_probe+0x6b/0x170 [11257.765547] really_probe+0xfb/0x3a0 [11257.765549] driver_probe_device+0x5f/0xe0 [11257.765550] device_driver_attach+0x5d/0x70 [11257.765551] bind_store+0xd3/0x110 [11257.765553] drv_attr_store+0x24/0x30 [11257.765554] sysfs_kf_write+0x3e/0x50 [11257.765555] kernfs_fop_write+0x11e/0x1a0 [11257.765557] __vfs_write+0x1b/0x40 [11257.765558] vfs_write+0xb9/0x1a0 [11257.765559] ksys_write+0x67/0xe0 [11257.765561] __x64_sys_write+0x1a/0x20 [11257.765567] do_syscall_64+0x5a/0x130 [11257.765693] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [11257.765696] RIP: 0033:0x7febc9e81327 [11257.765698] Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [11257.765698] RSP: 002b:00007ffd599433f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [11257.765699] RAX: ffffffffffffffda RBX: 00007febc9fd6ae8 RCX: 00007febc9e81327 [11257.765700] RDX: 0000000000000007 RSI: 000055eec8a9bfa0 RDI: 0000000000000004 [11257.765701] RBP: 0000000000000004 R08: 0000000000000006 R09: 7375622f7379732f [11257.765701] R10: 0000000000000000 R11: 0000000000000246 R12: 000055eec8a9bfa0 [11257.765702] R13: 0000000000000001 R14: 0000000000000007 R15: 00007ffd59943448 [11257.765703] ---[ end trace 442db04e33790cb5 ]--- [11257.782659] nd_pmem: probe of pfn1.0 failed with error -22 ---- It seems that after this point I can't play with my second virtual nvdimm device (pfn1.0). A namespace destroy works but a namespace creation does not: rafaeldtinoco@ndctltest:~$ sudo ndctl list -B [ { "provider":"ACPI.NFIT", "dev":"ndbus0" } ] rafaeldtinoco@ndctltest:~$ sudo ndctl list -D [ { "dev":"nmem1", "id":"8680-57341200", "handle":2, "phys_id":0 }, { "dev":"nmem0", "id":"8680-56341200", "handle":1, "phys_id":0 } ] rafaeldtinoco@ndctltest:~$ sudo ndctl list -R [ { "dev":"region1", "size":1073610752, "available_size":1073610752, "max_available_extent":1073610752, "type":"pmem", "iset_id":52512795602891997, "persistence_domain":"unknown" }, { "dev":"region0", "size":1073610752, "available_size":0, "max_available_extent":0, "type":"pmem", "iset_id":52512752653219036, "persistence_domain":"unknown" } ] Now, whenever trying to access namespace1.0 (from region1/nmem1/ndbus) I get: [11257.782659] nd_pmem: probe of pfn1.0 failed with error -22 [11332.001388] pfn0.0 initialised, 257024 pages in 8ms [11332.001818] pmem0: detected capacity change from 0 to 1052770304 [11359.739280] pfn0.1 initialised, 257024 pages in 0ms [11362.643212] pfn0.0 initialised, 257024 pages in 0ms [11362.644225] pmem0: detected capacity change from 0 to 1052770304 [11406.230365] pfn0.1 initialised, 257024 pages in 0ms [11406.231281] pmem0: detected capacity change from 0 to 1052770304 [11517.785147] pfn0.0 initialised, 257024 pages in 4ms [11517.785593] pmem0: detected capacity change from 0 to 1052770304 [11537.431697] pfn0.1 initialised, 257024 pages in 0ms [11537.432256] pmem0: detected capacity change from 0 to 1052770304 [11627.965947] pfn0.0 initialised, 257024 pages in 0ms [11627.966415] pmem0: detected capacity change from 0 to 1052770304 [11653.277667] pfn0.1 initialised, 257024 pages in 4ms [11653.278086] pmem0: detected capacity change from 0 to 1052770304 [11708.696361] pfn0.0 initialised, 257024 pages in 0ms [11708.697617] pmem0: detected capacity change from 0 to 1052770304 [11753.621295] nd_pmem btt0.0: No existing arenas [11753.623118] pmem0s: detected capacity change from 0 to 1071484928 [11767.087424] pfn0.1 initialised, 257024 pages in 4ms [11767.088272] pmem0: detected capacity change from 0 to 1052770304 [11775.815396] dax0.0 initialised, 257024 pages in 4ms [12848.341346] pfn0.0 initialised, 257024 pages in 0ms [12848.341785] pmem0: detected capacity change from 0 to 1052770304 [12851.897716] nd_pmem: probe of pfn1.0 failed with error -22 [13023.693246] pfn0.1 initialised, 257024 pages in 0ms [13023.693662] pmem0: detected capacity change from 0 to 1052770304 [13026.517467] nd_pmem: probe of pfn1.0 failed with error -22 [13067.380701] pmem0: detected capacity change from 0 to 1073610752 [13117.568499] nd_pmem: probe of pfn1.0 failed with error -22 [13946.604199] pfn0.0 initialised, 257024 pages in 0ms [13946.604777] pmem0: detected capacity change from 0 to 1052770304 [13957.948381] nd_pmem: probe of pfn1.0 failed with error -22 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1855177/+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
