re-post to cloud-dev mail list

On Wed, 1 Sept 2021 at 20:53, Kevin Zhao kevin.zhao@linaro.org wrote:

Hi Qiqing,

Below are the reproduced info, and the attached file is the dmesg.

Run first time: Operate on pmem0: [kevinz@localhost ~]$ sudo ndctl create-namespace --mode fsdax -e namespace0.0 -f -vvvv libndctl: ndctl_pfn_enable: pfn0.0: failed to enable Error: namespace0.0: failed to enable

failed to reconfigure namespace: No such device or address kernel log: [ 542.182599] nd_pmem: probe of pfn0.0 failed with error -17

opreate on Pmem1: [kevinz@localhost ~]$ sudo ndctl create-namespace --mode fsdax -e namespace1.0 -f -vvvv libndctl: ndctl_pfn_enable: pfn1.0: failed to enable Error: namespace1.0: failed to enable Kernel log: [ 564.802595] nd_pmem: probe of pfn1.0 failed with error -17

Run another time: opreate on Pmem1: [kevinz@localhost ~]$ sudo ndctl create-namespace --mode fsdax -e namespace1.0 -f -vvvv

[ 586.131493] Unable to handle kernel paging request at virtual address ffff205c00000000 [ 586.139389] Mem abort info: [ 586.142176] ESR = 0x96000006 [ 586.145217] EC = 0x25: DABT (current EL), IL = 32 bits [ 586.150505] SET = 0, FnV = 0 [ 586.153550] EA = 0, S1PTW = 0 [ 586.156678] Data abort info: [ 586.159545] ISV = 0, ISS = 0x00000006 [ 586.163368] CM = 0, WnR = 0 [ 586.166323] swapper pgtable: 64k pages, 48-bit VAs, pgdp=0000000025080000 [ 586.173085] [ffff205c00000000] pgd=1800205bfe1c0003, p4d=1800205bfe1c0003, pud=1800205bfe1c0003, pmd=0000000000000000 [ 586.183656] Internal error: Oops: 96000006 [#1] SMP [ 586.188514] Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip6_tables nft_compat ip_set nf_tables nfnetlink vfat fat ipmi_ssif crct10dif_ce ghash_ce sha1_ce sbsa_gwdt acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler dax_pmem_compat spi_dw_mmio device_dax spi_dw dax_pmem_core ip_tables xfs libcrc32c hibmc_drm drm_vram_helper drm_kms_helper realtek syscopyarea sysfillrect sysimgblt fb_sys_fops drm_ttm_helper ttm drm hns3 nd_pmem hisi_sas_v3_hw nd_btt hclge hisi_sas_main libsas sha2_ce nvme sha256_arm64 megaraid_sas nvme_core sg hnae3 scsi_transport_sas i2c_algo_bit i2c_designware_platform nfit i2c_designware_core gpio_dwapb dm_mirror dm_region_hash dm_log dm_mod [ 586.259887] CPU: 67 PID: 2735 Comm: ndctl Not tainted 5.13.801 #1 [ 586.265954] Hardware name: Huawei TaiShan 200 (Model 2280)/BC82AMDDA, BIOS 1.73 03/25/2021 [ 586.274179] pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--) [ 586.280157] pc : __memcpy+0x100/0x180 [ 586.283808] lr : pmem_do_read+0xac/0x138 [nd_pmem] [ 586.288583] sp : ffff80003736f040 [ 586.291884] x29: ffff80003736f040 x28: 0000000000010000 x27: fff0000000000000 [ 586.298988] x26: ffffffc8088fab40 x25: 0000000000000000 x24: ffff800011578988 [ 586.306092] x23: ffff20223b411cc0 x22: 000003c8088fab40 x21: ffff205c00000000 [ 586.313195] x20: 0000000000010000 x19: 0000000000010000 x18: ffffffffffffffff [ 586.320299] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000008 [ 586.327403] x14: 0000000000000001 x13: 0000000000000028 x12: 0101010101010101 [ 586.334507] x11: 7f7f7f7f7f7f7f7f x10: 00000000ffffffff x9 : ffff8000097a1030 [ 586.341611] x8 : ffff202246bd8e00 x7 : ffff202246bd7ab8 x6 : ffff20223ead0000 [ 586.348714] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 [ 586.355817] x2 : 000000000000ff80 x1 : ffff205c00000000 x0 : ffff20223ead0000 [ 586.362922] Call trace: [ 586.365357] __memcpy+0x100/0x180 [ 586.368656] pmem_submit_bio+0x180/0x1f0 [nd_pmem] [ 586.373428] submit_bio_noacct+0xdc/0x3f8 [ 586.377422] submit_bio+0x54/0x1e0 [ 586.380809] submit_bh_wbc+0x16c/0x1f8 [ 586.384552] block_read_full_page+0x310/0x448 [ 586.388892] blkdev_readpage+0x20/0x28 [ 586.392627] do_read_cache_page+0x2ec/0x3c0 [ 586.396797] read_cache_page+0x18/0x20 [ 586.400531] read_part_sector+0x50/0x1b0 [ 586.404445] read_lba+0xc8/0x1b8 [ 586.407660] efi_partition+0xd4/0x618 [ 586.411307] blk_add_partitions+0x144/0x520 [ 586.415472] bdev_disk_changed+0xc0/0x158 [ 586.419465] __blkdev_get+0x1d0/0x240 [ 586.423111] blkdev_get_by_dev+0x110/0x258 [ 586.427189] __device_add_disk+0x1f4/0x440 [ 586.431268] device_add_disk+0x18/0x20 [ 586.434999] pmem_attach_disk+0x3c4/0x4e8 [nd_pmem] [ 586.439855] nd_pmem_probe+0xc0/0xf0 [nd_pmem] [ 586.444280] nvdimm_bus_probe+0x78/0x1d0 [ 586.448187] really_probe+0xec/0x4c8 [ 586.451755] driver_probe_device+0x100/0x170 [ 586.456007] device_driver_attach+0x74/0x80 [ 586.460173] bind_store+0xdc/0x120 [ 586.463560] drv_attr_store+0x28/0x38 [ 586.467207] sysfs_kf_write+0x48/0x58 [ 586.470856] kernfs_fop_write_iter+0x138/0x1c8 [ 586.475280] new_sync_write+0x108/0x188 [ 586.479107] vfs_write+0x1e0/0x2a8 [ 586.482495] ksys_write+0x6c/0xf0 [ 586.485794] __arm64_sys_write+0x20/0x28 [ 586.489700] invoke_syscall.constprop.4+0x50/0xd8 [ 586.494391] do_el0_svc+0xe8/0x148 [ 586.497779] el0_svc+0x2c/0x90 [ 586.500828] el0_sync_handler+0x88/0xd0 [ 586.504648] el0_sync+0x148/0x180 [ 586.507952] Code: d503201f d503201f d503201f d503201f (a8c12027) [ 586.514060] ---[ end trace 04600250bd0bcced ]--- [ 586.518657] Kernel panic - not syncing: Oops: Fatal exception [ 586.524392] SMP: stopping secondary CPUs [ 587.130797] Kernel Offset: disabled [ 587.134271] CPU features: 0x00000001,a3202c40 [ 587.138610] Memory Limit: none [ 587.141664] ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---

-- *Best Regards*

*Kevin Zhao*

Tech Lead, LDCG Cloud Infrastructure

Linaro Vertical Technologies

IRC(freenode): kevinz

Slack(kubernetes.slack.com): kevinz

kevin.zhao@linaro.org | Mobile/Direct/Wechat: +86 18818270915