* nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
@ 2020-03-12 14:59 Dorau, Lukasz
2020-03-12 15:06 ` Dorau, Lukasz
0 siblings, 1 reply; 9+ messages in thread
From: Dorau, Lukasz @ 2020-03-12 14:59 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Slusarz, Marcin
Hi,
I have inserted the 'nfit_test' module, removed it and reinserted it again (like in the previous e-mail " nfit_test: issue #2: modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter ") and called:
$ ndctl disable-region all
And got the following oops:
[ 3079.971649] nfit_test: mcsafe_test: disabled, skip.
[ 3080.030189] nfit_test nfit_test.0: failed to evaluate _FIT
[ 3080.039150] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
[ 3080.039159] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
[ 3080.039696] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 3080.039805] pmem6: detected capacity change from 0 to 33554432
[ 3080.039806] pmem7: detected capacity change from 0 to 4194304
[ 3080.243372] pmem7: detected capacity change from 0 to 4194304
[ 3080.251781] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 3080.251871] pmem6: detected capacity change from 0 to 33554432
[ 3080.508112] BUG: kernel NULL pointer dereference, address: 0000000000000018
[ 3080.508117] #PF: supervisor read access in kernel mode
[ 3080.508118] #PF: error_code(0x0000) - not-present page
[ 3080.508120] PGD 0 P4D 0
[ 3080.508123] Oops: 0000 [#1] PREEMPT SMP PTI
[ 3080.508126] CPU: 3 PID: 80123 Comm: pmempool Tainted: G O 5.5.8-arch1-1-bb #1
[ 3080.508128] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
[ 3080.508133] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 3080.508136] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 98 54 0d db 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 3080.508137] RSP: 0000:ffffb44406bdfdb0 EFLAGS: 00010247
[ 3080.508139] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 3080.508141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff924c3d789900
[ 3080.508142] RBP: ffffb44406bdfe28 R08: 000709b000000000 R09: 00000000001baf04
[ 3080.508144] R10: ffff924cbfffc000 R11: 0000000000033160 R12: ffff924c48dd4200
[ 3080.508145] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 3080.508147] FS: 00007fb40da5c900(0000) GS:ffff924cafac0000(0000) knlGS:0000000000000000
[ 3080.508149] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3080.508151] CR2: 0000000000000018 CR3: 00000003cab58003 CR4: 00000000000606e0
[ 3080.508152] Call Trace:
[ 3080.508161] __do_fault+0x38/0x120
[ 3080.508165] __handle_mm_fault+0xff2/0x1580
[ 3080.508170] ? big_key_read+0x1b0/0x1b0
[ 3080.508174] handle_mm_fault+0xce/0x200
[ 3080.508178] do_user_addr_fault+0x1ef/0x470
[ 3080.508184] page_fault+0x34/0x40
[ 3080.508187] RIP: 0033:0x7fb40de6cb7c
[ 3080.508189] Code: c3 48 81 fa 00 08 00 00 77 a1 48 83 fa 40 77 16 f3 0f 7f 07 f3 0f 7f 47 10 f3 0f 7f 44 17 f0 f3 0f 7f 44 17 e0 c3 48 8d 4f 40 <f3> 0f 7f 07 48 83 e1 c0 f3 0f 7f 44 17 f0 f3 0f 7f 47 10 f3 0f 7f
[ 3080.508190] RSP: 002b:00007ffe85e8e758 EFLAGS: 00010206
[ 3080.508192] RAX: 00007fb40ba00000 RBX: 0000000000000000 RCX: 00007fb40ba00040
[ 3080.508193] RDX: 0000000000200000 RSI: 0000000000000000 RDI: 00007fb40ba00000
[ 3080.508195] RBP: 0000000001e00000 R08: 000000000000000a R09: 0000000000000000
[ 3080.508196] R10: 0000000000000001 R11: 0000000000000206 R12: 000000000000000a
[ 3080.508197] R13: 0000000000000000 R14: 00007fb40ba00000 R15: 0000000000000000
[ 3080.508201] Modules linked in: kmem nfit_test(O) nfit(O) nd_blk dax_pmem_compat(O) device_dax(O) dax_pmem(O) dax_pmem_core(O) nd_pmem(O) nd_btt(O) libnvdimm(O) nfit_test_iomap(O) encrypted_keys trusted tpm rng_core fuse xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc overlay intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic irqbypass nouveau ledtrig_audio eeepc_wmi snd_hda_intel btusb asus_wmi snd_intel_dspcfg btrtl iTCO_wdt battery crct10dif_pclmul crc32_pclmul btbcm snd_hda_codec iTCO_vendor_support sparse_keymap btintel wmi_bmof ghash_clmulni_intel bluetooth mxm_wmi aesni_intel snd_hda_core crypto_simd i2c_algo_bit cryptd ttm glue_helper intel_cstate snd_hwdep intel_uncore ecdh_generic dm_mod input_leds intel_rapl_perf
snd_pcm
[ 3080.508235] joydev mousedev rfkill drm_kms_helper pcspkr i2c_i801 ecc snd_timer lpc_ich e1000e snd mei_me syscopyarea sysfillrect sysimgblt mei fb_sys_fops soundcore wmi evdev mac_hid drm sg crypto_user agpgart ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sr_mod cdrom sd_mod ahci libahci libata crc32c_intel xhci_pci scsi_mod xhci_hcd ehci_pci ehci_hcd [last unloaded: nfit]
[ 3080.508258] CR2: 0000000000000018
[ 3080.508260] ---[ end trace 4485b40fc6cb1bcb ]---
[ 3080.508264] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 3080.508266] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 98 54 0d db 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 3080.508268] RSP: 0000:ffffb44406bdfdb0 EFLAGS: 00010247
[ 3080.508270] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 3080.508271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff924c3d789900
[ 3080.508272] RBP: ffffb44406bdfe28 R08: 000709b000000000 R09: 00000000001baf04
[ 3080.508274] R10: ffff924cbfffc000 R11: 0000000000033160 R12: ffff924c48dd4200
[ 3080.508275] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 3080.508277] FS: 00007fb40da5c900(0000) GS:ffff924cafac0000(0000) knlGS:0000000000000000
[ 3080.508279] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3080.508280] CR2: 0000000000000018 CR3: 00000003cab58003 CR4: 00000000000606e0
$ ps aux | grep ndctl
root 25958 0.0 0.0 6396 1732 pts/0 D+ 15:40 0:00 ndctl disable-region all
root 26409 0.0 0.0 6396 1800 pts/0 D+ 15:43 0:00 ndctl disable-region all
$ sudo cat /proc/25958/stack
[<0>] __synchronize_srcu+0x8e/0xc0
[<0>] kill_dax+0x22/0x70
[<0>] pmem_release_disk+0x12/0x40 [nd_pmem]
[<0>] release_nodes+0x19b/0x1e0
[<0>] device_release_driver_internal+0xf4/0x1c0
[<0>] unbind_store+0xef/0x120
[<0>] kernfs_fop_write+0xce/0x1b0
[<0>] vfs_write+0xb6/0x1a0
[<0>] ksys_write+0x67/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
$ sudo cat /proc/26409/stack
[<0>] flush_namespaces+0x15/0x30 [libnvdimm]
[<0>] device_for_each_child+0x69/0xa0
[<0>] flush_regions_dimms+0x33/0x40 [libnvdimm]
[<0>] device_for_each_child+0x69/0xa0
[<0>] wait_probe_show+0x3d/0x60 [libnvdimm]
[<0>] dev_attr_show+0x19/0x40
[<0>] sysfs_kf_seq_show+0x9b/0xf0
[<0>] seq_read+0xcd/0x440
[<0>] vfs_read+0x9d/0x150
[<0>] ksys_read+0x67/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
--
Lukasz
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* nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-12 14:59 nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018 Dorau, Lukasz
@ 2020-03-12 15:06 ` Dorau, Lukasz
2020-03-12 17:08 ` Dan Williams
0 siblings, 1 reply; 9+ messages in thread
From: Dorau, Lukasz @ 2020-03-12 15:06 UTC (permalink / raw)
To: linux-nvdimm; +Cc: Verma, Vishal L, Williams, Dan J
Hi,
[Resending the same, because the first e-mail got corrupted]
I have inserted the 'nfit_test' module, removed it and reinserted it again (like in the previous e-mail " nfit_test: issue #2: modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter ") and called:
$ ndctl disable-region all
And got the following oops:
[ 3079.971649] nfit_test: mcsafe_test: disabled, skip.
[ 3080.030189] nfit_test nfit_test.0: failed to evaluate _FIT
[ 3080.039150] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
[ 3080.039159] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
[ 3080.039696] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 3080.039805] pmem6: detected capacity change from 0 to 33554432
[ 3080.039806] pmem7: detected capacity change from 0 to 4194304
[ 3080.243372] pmem7: detected capacity change from 0 to 4194304
[ 3080.251781] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 3080.251871] pmem6: detected capacity change from 0 to 33554432
[ 3080.508112] BUG: kernel NULL pointer dereference, address: 0000000000000018
[ 3080.508117] #PF: supervisor read access in kernel mode
[ 3080.508118] #PF: error_code(0x0000) - not-present page
[ 3080.508120] PGD 0 P4D 0
[ 3080.508123] Oops: 0000 [#1] PREEMPT SMP PTI
[ 3080.508126] CPU: 3 PID: 80123 Comm: pmempool Tainted: G O 5.5.8-arch1-1-bb #1
[ 3080.508128] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
[ 3080.508133] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 3080.508136] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 98 54 0d db 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 3080.508137] RSP: 0000:ffffb44406bdfdb0 EFLAGS: 00010247
[ 3080.508139] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 3080.508141] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff924c3d789900
[ 3080.508142] RBP: ffffb44406bdfe28 R08: 000709b000000000 R09: 00000000001baf04
[ 3080.508144] R10: ffff924cbfffc000 R11: 0000000000033160 R12: ffff924c48dd4200
[ 3080.508145] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 3080.508147] FS: 00007fb40da5c900(0000) GS:ffff924cafac0000(0000) knlGS:0000000000000000
[ 3080.508149] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3080.508151] CR2: 0000000000000018 CR3: 00000003cab58003 CR4: 00000000000606e0
[ 3080.508152] Call Trace:
[ 3080.508161] __do_fault+0x38/0x120
[ 3080.508165] __handle_mm_fault+0xff2/0x1580
[ 3080.508170] ? big_key_read+0x1b0/0x1b0
[ 3080.508174] handle_mm_fault+0xce/0x200
[ 3080.508178] do_user_addr_fault+0x1ef/0x470
[ 3080.508184] page_fault+0x34/0x40
[ 3080.508187] RIP: 0033:0x7fb40de6cb7c
[ 3080.508189] Code: c3 48 81 fa 00 08 00 00 77 a1 48 83 fa 40 77 16 f3 0f 7f 07 f3 0f 7f 47 10 f3 0f 7f 44 17 f0 f3 0f 7f 44 17 e0 c3 48 8d 4f 40 <f3> 0f 7f 07 48 83 e1 c0 f3 0f 7f 44 17 f0 f3 0f 7f 47 10 f3 0f 7f
[ 3080.508190] RSP: 002b:00007ffe85e8e758 EFLAGS: 00010206
[ 3080.508192] RAX: 00007fb40ba00000 RBX: 0000000000000000 RCX: 00007fb40ba00040
[ 3080.508193] RDX: 0000000000200000 RSI: 0000000000000000 RDI: 00007fb40ba00000
[ 3080.508195] RBP: 0000000001e00000 R08: 000000000000000a R09: 0000000000000000
[ 3080.508196] R10: 0000000000000001 R11: 0000000000000206 R12: 000000000000000a
[ 3080.508197] R13: 0000000000000000 R14: 00007fb40ba00000 R15: 0000000000000000
[ 3080.508201] Modules linked in: kmem nfit_test(O) nfit(O) nd_blk dax_pmem_compat(O) device_dax(O) dax_pmem(O) dax_pmem_core(O) nd_pmem(O) nd_btt(O) libnvdimm(O) nfit_test_iomap(O) encrypted_keys trusted tpm rng_core fuse xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c br_netfilter bridge stp llc overlay intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_hda_codec_realtek snd_hda_codec_generic irqbypass nouveau ledtrig_audio eeepc_wmi snd_hda_intel btusb asus_wmi snd_intel_dspcfg btrtl iTCO_wdt battery crct10dif_pclmul crc32_pclmul btbcm snd_hda_codec iTCO_vendor_support sparse_keymap btintel wmi_bmof ghash_clmulni_intel bluetooth mxm_wmi aesni_intel snd_hda_core crypto_simd i2c_algo_bit cryptd ttm glue_helper intel_cstate snd_hwdep intel_uncore ecdh_generic dm_mod input_leds intel_rapl_perf
snd_pcm
[ 3080.508235] joydev mousedev rfkill drm_kms_helper pcspkr i2c_i801 ecc snd_timer lpc_ich e1000e snd mei_me syscopyarea sysfillrect sysimgblt mei fb_sys_fops soundcore wmi evdev mac_hid drm sg crypto_user agpgart ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sr_mod cdrom sd_mod ahci libahci libata crc32c_intel xhci_pci scsi_mod xhci_hcd ehci_pci ehci_hcd [last unloaded: nfit]
[ 3080.508258] CR2: 0000000000000018
[ 3080.508260] ---[ end trace 4485b40fc6cb1bcb ]---
[ 3080.508264] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 3080.508266] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 98 54 0d db 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 3080.508268] RSP: 0000:ffffb44406bdfdb0 EFLAGS: 00010247
[ 3080.508270] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 3080.508271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff924c3d789900
[ 3080.508272] RBP: ffffb44406bdfe28 R08: 000709b000000000 R09: 00000000001baf04
[ 3080.508274] R10: ffff924cbfffc000 R11: 0000000000033160 R12: ffff924c48dd4200
[ 3080.508275] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 3080.508277] FS: 00007fb40da5c900(0000) GS:ffff924cafac0000(0000) knlGS:0000000000000000
[ 3080.508279] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3080.508280] CR2: 0000000000000018 CR3: 00000003cab58003 CR4: 00000000000606e0
$ ps aux | grep ndctl
root 25958 0.0 0.0 6396 1732 pts/0 D+ 15:40 0:00 ndctl disable-region all
root 26409 0.0 0.0 6396 1800 pts/0 D+ 15:43 0:00 ndctl disable-region all
$ sudo cat /proc/25958/stack
[<0>] __synchronize_srcu+0x8e/0xc0
[<0>] kill_dax+0x22/0x70
[<0>] pmem_release_disk+0x12/0x40 [nd_pmem]
[<0>] release_nodes+0x19b/0x1e0
[<0>] device_release_driver_internal+0xf4/0x1c0
[<0>] unbind_store+0xef/0x120
[<0>] kernfs_fop_write+0xce/0x1b0
[<0>] vfs_write+0xb6/0x1a0
[<0>] ksys_write+0x67/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
$ sudo cat /proc/26409/stack
[<0>] flush_namespaces+0x15/0x30 [libnvdimm]
[<0>] device_for_each_child+0x69/0xa0
[<0>] flush_regions_dimms+0x33/0x40 [libnvdimm]
[<0>] device_for_each_child+0x69/0xa0
[<0>] wait_probe_show+0x3d/0x60 [libnvdimm]
[<0>] dev_attr_show+0x19/0x40
[<0>] sysfs_kf_seq_show+0x9b/0xf0
[<0>] seq_read+0xcd/0x440
[<0>] vfs_read+0x9d/0x150
[<0>] ksys_read+0x67/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
--
Lukasz
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* Re: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-12 15:06 ` Dorau, Lukasz
@ 2020-03-12 17:08 ` Dan Williams
2020-03-13 10:06 ` Dorau, Lukasz
0 siblings, 1 reply; 9+ messages in thread
From: Dan Williams @ 2020-03-12 17:08 UTC (permalink / raw)
To: Dorau, Lukasz; +Cc: linux-nvdimm
On Thu, Mar 12, 2020 at 8:06 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
>
> Hi,
>
> [Resending the same, because the first e-mail got corrupted]
>
> I have inserted the 'nfit_test' module, removed it and reinserted it again (like in the previous e-mail " nfit_test: issue #2: modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter ") and called:
> $ ndctl disable-region all
> And got the following oops:
>
> [ 3079.971649] nfit_test: mcsafe_test: disabled, skip.
> [ 3080.030189] nfit_test nfit_test.0: failed to evaluate _FIT
> [ 3080.039150] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
> [ 3080.039159] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
> [ 3080.039696] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
> [ 3080.039805] pmem6: detected capacity change from 0 to 33554432
> [ 3080.039806] pmem7: detected capacity change from 0 to 4194304
> [ 3080.243372] pmem7: detected capacity change from 0 to 4194304
> [ 3080.251781] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
> [ 3080.251871] pmem6: detected capacity change from 0 to 33554432
> [ 3080.508112] BUG: kernel NULL pointer dereference, address: 0000000000000018
> [ 3080.508117] #PF: supervisor read access in kernel mode
> [ 3080.508118] #PF: error_code(0x0000) - not-present page
> [ 3080.508120] PGD 0 P4D 0
> [ 3080.508123] Oops: 0000 [#1] PREEMPT SMP PTI
> [ 3080.508126] CPU: 3 PID: 80123 Comm: pmempool Tainted: G O 5.5.8-arch1-1-bb #1
> [ 3080.508128] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
> [ 3080.508133] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
If you force loaded a module with unresolved symbols all bets are off,
lets get "make TESTS=libndctl check" running cleanly before trying to
debug this report.
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^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-12 17:08 ` Dan Williams
@ 2020-03-13 10:06 ` Dorau, Lukasz
2020-03-13 15:49 ` Dan Williams
0 siblings, 1 reply; 9+ messages in thread
From: Dorau, Lukasz @ 2020-03-13 10:06 UTC (permalink / raw)
To: Williams, Dan J; +Cc: linux-nvdimm
On Thursday, March 12, 2020 6:09 PM Dan Williams <dan.j.williams@intel.com> wrote:
>
> If you force loaded a module with unresolved symbols all bets are off,
> lets get "make TESTS=libndctl check" running cleanly before trying to
> debug this report.
My experiments with "make TESTS=libndctl check" I have described in the separate thread "nfit_test: issue #2":
https://lists.01.org/hyperkitty/list/linux-nvdimm@lists.01.org/thread/QDFPRM5C3UQJKPQ6OKA6PO57Z55S67RF/
I have *NOT* force loaded a module with unresolved symbols. I have loaded the 'nfit_test' module manually (using 'insmod') without any errors.
I have repeated those steps below for the latest
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
kernel from the ' libnvdimm-for-next' branch and the oops occurred again:
[ 1559.560169] BUG: kernel NULL pointer dereference, address: 0000000000000018
[ 1559.560177] #PF: supervisor read access in kernel mode
[ 1559.560180] #PF: error_code(0x0000) - not-present page
[ 1559.560182] PGD 80000003886b7067 P4D 80000003886b7067 PUD 3f53af067 PMD 0
[ 1559.560190] Oops: 0000 [#1] PREEMPT SMP PTI
[ 1559.560196] CPU: 0 PID: 79767 Comm: pmempool Tainted: G O 5.6.0-rc1-13504-g7b27a8622f80 #1
[ 1559.560199] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
[ 1559.560207] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
The steps to reproduce:
$ sudo modprobe -v nfit_test
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/char/hw_random/rng-core.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/char/tpm/tpm.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/security/keys/trusted-keys/trusted.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz
install /usr/bin/ndctl load-keys ; /sbin/modprobe --ignore-install libnvdimm $CMDLINE_OPTS
No TPM handle discovered.
failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or directory
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/nvdimm/libnvdimm.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test_iomap.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
$ dmesg | tail
[ 102.769871] Key type encrypted registered
[ 102.799289] nfit_test_iomap: loading out-of-tree module taints kernel.
[ 102.804008] nfit_test: Unknown symbol libnvdimm_test (err -2)
[ 102.804054] nfit_test: Unknown symbol acpi_nfit_test (err -2)
[ 102.804118] nfit_test: Unknown symbol pmem_test (err -2)
[ 102.804164] nfit_test: Unknown symbol dax_pmem_core_test (err -2)
[ 102.804226] nfit_test: Unknown symbol dax_pmem_compat_test (err -2)
[ 102.804273] nfit_test: Unknown symbol device_dax_test (err -2)
[ 102.804308] nfit_test: Unknown symbol dax_pmem_test (err -2)
Removing the wrong modules:
$ sudo rmmod nfit
$ sudo rmmod libnvdimm
Inserting the right modules manually:
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/libnvdimm.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_btt.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_pmem.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nfit.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem_core.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/device_dax.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem_compat.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
The 'nfit_test' module is successfully inserted with *NO ERRORS* now:
$ dmesg | tail
[ 464.439504] nfit_test: mcsafe_test: disabled, skip.
[ 464.500439] nfit_test nfit_test.0: failed to evaluate _FIT
[ 464.507964] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
[ 464.507990] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
[ 464.508614] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 464.508729] pmem6: detected capacity change from 0 to 33554432
[ 464.508737] pmem7: detected capacity change from 0 to 4194304
$ lsmod | grep nfit
nfit_test 49152 8
dax_pmem_compat 20480 1 nfit_test
device_dax 20480 2 nfit_test,dax_pmem_compat
dax_pmem 20480 1 nfit_test
dax_pmem_core 20480 3 dax_pmem,nfit_test,dax_pmem_compat
nfit 73728 1 nfit_test
nd_pmem 24576 1 nfit_test
libnvdimm 200704 8 dax_pmem,nfit_test,dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nd_blk,nfit
nfit_test_iomap 24576 6 nfit_test,dax_pmem_core,device_dax,nd_pmem,libnvdimm,nfit
Trying to remove and reinsert the 'nfit_test' module:
$ sudo ndctl disable-region all
disabled 8 regions
$ sudo modprobe -v -r nfit_test
rmmod nfit_test
rmmod nfit
$ sudo modprobe -v nfit_test
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
$ dmesg | tail
[ 919.861636] nfit_test: Unknown symbol acpi_nfit_test (err -2)
Removing the wrong module:
$ sudo rmmod nfit
Reinserting manually:
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nfit.ko.xz
$ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
The 'nfit_test' module is successfully inserted with *NO ERRORS* again.
$ lsmod | grep nfit
nfit_test 49152 8
nfit 73728 1 nfit_test
dax_pmem_compat 20480 1 nfit_test
device_dax 20480 2 nfit_test,dax_pmem_compat
dax_pmem 20480 1 nfit_test
dax_pmem_core 20480 3 dax_pmem,nfit_test,dax_pmem_compat
nd_pmem 24576 1 nfit_test
libnvdimm 200704 8 dax_pmem,nfit_test,dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nd_blk,nfit
nfit_test_iomap 24576 6 nfit_test,dax_pmem_core,device_dax,nd_pmem,libnvdimm,nfit
Run PMDK pmempool_sync tests:
$ cd ~/pmdk/src/test
[~/pmdk/src/test]$ ./RUNTESTS pmempool_sync
pmempool_sync/TEST27: SETUP (check/pmem/debug)
pmempool_sync/TEST27: PASS [15.603 s]
pmempool_sync/TEST27: SETUP (check/pmem/nondebug)
pmempool_sync/TEST27: PASS [14.988 s]
pmempool_sync/TEST28: SETUP (check/pmem/debug)
../unittest/unittest.sh: line 866: 79767 Killed ../../tools/pmempool/pmempool rm /tmp//test_pmempool_sync28/testset1
pmempool_sync/TEST28 crashed (signal 9).
$ dmesg | tail
[ 1543.234929] EXT4-fs (pmem0): mounted filesystem with ordered data mode. Opts: (null)
[ 1543.234943] ext4 filesystem being mounted at /tmp/test_pmempool_sync27/mnt-pmem supports timestamps until 2038 (0x7fffffff)
[ 1558.910001] nfit_test: mcsafe_test: disabled, skip.
[ 1558.966718] nfit_test nfit_test.0: failed to evaluate _FIT
[ 1558.974772] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
[ 1558.974783] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
[ 1558.975247] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 1558.975376] pmem7: detected capacity change from 0 to 4194304
[ 1558.975380] pmem6: detected capacity change from 0 to 33554432
[ 1559.147912] pmem7: detected capacity change from 0 to 4194304
[ 1559.152775] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
[ 1559.152852] pmem6: detected capacity change from 0 to 33554432
[ 1559.560169] BUG: kernel NULL pointer dereference, address: 0000000000000018
[ 1559.560177] #PF: supervisor read access in kernel mode
[ 1559.560180] #PF: error_code(0x0000) - not-present page
[ 1559.560182] PGD 80000003886b7067 P4D 80000003886b7067 PUD 3f53af067 PMD 0
[ 1559.560190] Oops: 0000 [#1] PREEMPT SMP PTI
[ 1559.560196] CPU: 0 PID: 79767 Comm: pmempool Tainted: G O 5.6.0-rc1-13504-g7b27a8622f80 #1
[ 1559.560199] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
[ 1559.560207] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 1559.560211] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 58 bf 86 ea 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 1559.560215] RSP: 0000:ffffad85816f7db0 EFLAGS: 00010247
[ 1559.560218] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1559.560220] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff964e4c0eb000
[ 1559.560223] RBP: ffffad85816f7e28 R08: 0005f6e000000000 R09: 0000000000251901
[ 1559.560226] R10: ffff964effffc000 R11: 0000000000033160 R12: ffff964eea06a100
[ 1559.560228] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 1559.560232] FS: 00007f6957dfe600(0000) GS:ffff964eefa00000(0000) knlGS:0000000000000000
[ 1559.560235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1559.560237] CR2: 0000000000000018 CR3: 000000039118e004 CR4: 00000000000606f0
[ 1559.560240] Call Trace:
[ 1559.560257] __do_fault+0x38/0x120
[ 1559.560263] __handle_mm_fault+0xfe9/0x1570
[ 1559.560269] ? security_mmap_file+0x7a/0xe0
[ 1559.560277] handle_mm_fault+0xce/0x200
[ 1559.560284] do_user_addr_fault+0x1ef/0x470
[ 1559.560293] page_fault+0x34/0x40
[ 1559.560298] RIP: 0033:0x7f69582d1f5c
[ 1559.560302] Code: c3 48 81 fa 00 08 00 00 77 a1 48 83 fa 40 77 16 f3 0f 7f 07 f3 0f 7f 47 10 f3 0f 7f 44 17 f0 f3 0f 7f 44 17 e0 c3 48 8d 4f 40 <f3> 0f 7f 07 48 83 e1 c0 f3 0f 7f 44 17 f0 f3 0f 7f 47 10 f3 0f 7f
[ 1559.560304] RSP: 002b:00007fffb0512278 EFLAGS: 00010206
[ 1559.560307] RAX: 00007f6955c00000 RBX: 0000000000000000 RCX: 00007f6955c00040
[ 1559.560310] RDX: 0000000000200000 RSI: 0000000000000000 RDI: 00007f6955c00000
[ 1559.560312] RBP: 0000000001e00000 R08: 000000000000000a R09: 0000000000000000
[ 1559.560315] R10: 0000000000000001 R11: 0000000000000206 R12: 000000000000000a
[ 1559.560317] R13: 0000000000000000 R14: 00007f6955c00000 R15: 0000000000000000
[ 1559.560324] Modules linked in: kmem nfit_test(O) nfit(O) nd_blk dax_pmem_compat(O) device_dax(O) dax_pmem(O) dax_pmem_core(O) nd_pmem(O) nd_btt(O) libnvdimm(O) nfit_test_iomap(O) encrypted_keys trusted tpm rng_core uinput rfcomm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT xt_tcpudp ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep sunrpc nls_iso8859_1 nls_cp437 vfat fat dm_mirror dm_region_hash dm_log intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio btus
b
[ 1559.560377] snd_hda_intel btrtl crct10dif_pclmul iTCO_wdt btbcm snd_intel_dspcfg iTCO_vendor_support btintel crc32_pclmul ghash_clmulni_intel snd_hda_codec bluetooth aesni_intel snd_hda_core crypto_simd cryptd glue_helper snd_hwdep intel_cstate snd_seq snd_seq_device mousedev snd_pcm input_leds eeepc_wmi intel_uncore asus_wmi joydev battery ecdh_generic intel_rapl_perf sparse_keymap wmi_bmof pcspkr i2c_i801 lpc_ich ecc snd_timer mei_me snd mei soundcore evdev mac_hid ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 rfkill hid_generic usbhid hid sr_mod cdrom sd_mod nouveau i2c_algo_bit drm_kms_helper mxm_wmi syscopyarea sysfillrect sysimgblt ahci fb_sys_fops cec libahci ttm libata crc32c_intel drm xhci_pci scsi_mod e1000e xhci_hcd ehci_pci ehci_hcd agpgart wmi dm_mod fuse [last unloaded: nfit]
[ 1559.560435] CR2: 0000000000000018
[ 1559.560439] ---[ end trace b60c468cd995d984 ]---
[ 1559.560446] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
[ 1559.560450] Code: 37 48 c1 ee 0c 48 01 f0 48 ba ff ff ff ff ff ff 0f 00 49 c1 ef 0c 48 21 d3 49 01 c7 48 c1 e3 06 48 03 1d 58 bf 86 ea 48 89 da <48> 83 7a 18 00 75 10 49 8b 8c 24 f0 00 00 00 48 89 42 20 48 89 4a
[ 1559.560453] RSP: 0000:ffffad85816f7db0 EFLAGS: 00010247
[ 1559.560456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1559.560458] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff964e4c0eb000
[ 1559.560461] RBP: ffffad85816f7e28 R08: 0005f6e000000000 R09: 0000000000251901
[ 1559.560463] R10: ffff964effffc000 R11: 0000000000033160 R12: ffff964eea06a100
[ 1559.560466] R13: 0000000000000001 R14: 0000000000000100 R15: 0000000000000001
[ 1559.560469] FS: 00007f6957dfe600(0000) GS:ffff964eefa00000(0000) knlGS:0000000000000000
[ 1559.560472] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1559.560475] CR2: 0000000000000018 CR3: 000000039118e004 CR4: 00000000000606f0
$ $ ps aux | grep -e 'D+' | grep -v grep
root 80616 0.0 0.0 7240 4020 pts/2 D+ 09:44 0:00 ndctl disable-region all
root 81004 0.0 0.0 7240 2112 pts/2 D+ 09:47 0:00 ndctl disable-region all
ldorau 81291 0.0 0.0 34572 5676 pts/2 D+ 09:50 0:00 ../../tools/pmempool/pmempool create obj --layout pmempool /tmp//test_pmempool_sync32/testset1
$ sudo cat /proc/80616/stack
[<0>] __synchronize_srcu.part.0+0x78/0xa0
[<0>] kill_dax+0x22/0x70
[<0>] pmem_release_disk+0x12/0x40 [nd_pmem]
[<0>] release_nodes+0x19c/0x1e0
[<0>] device_release_driver_internal+0xf4/0x1c0
[<0>] unbind_store+0xef/0x120
[<0>] kernfs_fop_write+0xce/0x1b0
[<0>] vfs_write+0xb6/0x1a0
[<0>] ksys_write+0x5f/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
$ sudo cat /proc/81004/stack
[<0>] flush_namespaces+0x15/0x30 [libnvdimm]
[<0>] device_for_each_child+0x58/0x90
[<0>] flush_regions_dimms+0x33/0x40 [libnvdimm]
[<0>] device_for_each_child+0x58/0x90
[<0>] wait_probe_show+0x3d/0x60 [libnvdimm]
[<0>] dev_attr_show+0x19/0x40
[<0>] sysfs_kf_seq_show+0x9b/0xf0
[<0>] seq_read+0xcd/0x440
[<0>] vfs_read+0x9d/0x150
[<0>] ksys_read+0x5f/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
$ sudo cat /proc/81291/stack
[<0>] flush_namespaces+0x15/0x30 [libnvdimm]
[<0>] device_for_each_child+0x58/0x90
[<0>] flush_regions_dimms+0x33/0x40 [libnvdimm]
[<0>] device_for_each_child+0x58/0x90
[<0>] wait_probe_show+0x3d/0x60 [libnvdimm]
[<0>] dev_attr_show+0x19/0x40
[<0>] sysfs_kf_seq_show+0x9b/0xf0
[<0>] seq_read+0xcd/0x440
[<0>] vfs_read+0x9d/0x150
[<0>] ksys_read+0x5f/0xe0
[<0>] do_syscall_64+0x4e/0x150
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
--
Lukasz
_______________________________________________
Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org
To unsubscribe send an email to linux-nvdimm-leave@lists.01.org
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-13 10:06 ` Dorau, Lukasz
@ 2020-03-13 15:49 ` Dan Williams
2020-03-16 8:58 ` Dorau, Lukasz
0 siblings, 1 reply; 9+ messages in thread
From: Dan Williams @ 2020-03-13 15:49 UTC (permalink / raw)
To: Dorau, Lukasz; +Cc: linux-nvdimm
On Fri, Mar 13, 2020 at 3:06 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
>
> On Thursday, March 12, 2020 6:09 PM Dan Williams <dan.j.williams@intel.com> wrote:
> >
> > If you force loaded a module with unresolved symbols all bets are off,
> > lets get "make TESTS=libndctl check" running cleanly before trying to
> > debug this report.
>
> My experiments with "make TESTS=libndctl check" I have described in the separate thread "nfit_test: issue #2":
> https://lists.01.org/hyperkitty/list/linux-nvdimm@lists.01.org/thread/QDFPRM5C3UQJKPQ6OKA6PO57Z55S67RF/
>
> I have *NOT* force loaded a module with unresolved symbols. I have loaded the 'nfit_test' module manually (using 'insmod') without any errors.
> I have repeated those steps below for the latest
> git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm.git
> kernel from the ' libnvdimm-for-next' branch and the oops occurred again:
>
> [ 1559.560169] BUG: kernel NULL pointer dereference, address: 0000000000000018
> [ 1559.560177] #PF: supervisor read access in kernel mode
> [ 1559.560180] #PF: error_code(0x0000) - not-present page
> [ 1559.560182] PGD 80000003886b7067 P4D 80000003886b7067 PUD 3f53af067 PMD 0
> [ 1559.560190] Oops: 0000 [#1] PREEMPT SMP PTI
> [ 1559.560196] CPU: 0 PID: 79767 Comm: pmempool Tainted: G O 5.6.0-rc1-13504-g7b27a8622f80 #1
> [ 1559.560199] Hardware name: System manufacturer System Product Name/RAMPAGE IV EXTREME, BIOS 4701 11/18/2013
> [ 1559.560207] RIP: 0010:dev_dax_huge_fault+0x2b3/0x570 [device_dax]
>
> The steps to reproduce:
>
> $ sudo modprobe -v nfit_test
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/char/hw_random/rng-core.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/char/tpm/tpm.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/security/keys/trusted-keys/trusted.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz
> install /usr/bin/ndctl load-keys ; /sbin/modprobe --ignore-install libnvdimm $CMDLINE_OPTS
> No TPM handle discovered.
> failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or directory
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/nvdimm/libnvdimm.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test_iomap.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
>
> $ dmesg | tail
> [ 102.769871] Key type encrypted registered
> [ 102.799289] nfit_test_iomap: loading out-of-tree module taints kernel.
> [ 102.804008] nfit_test: Unknown symbol libnvdimm_test (err -2)
> [ 102.804054] nfit_test: Unknown symbol acpi_nfit_test (err -2)
> [ 102.804118] nfit_test: Unknown symbol pmem_test (err -2)
> [ 102.804164] nfit_test: Unknown symbol dax_pmem_core_test (err -2)
> [ 102.804226] nfit_test: Unknown symbol dax_pmem_compat_test (err -2)
> [ 102.804273] nfit_test: Unknown symbol device_dax_test (err -2)
> [ 102.804308] nfit_test: Unknown symbol dax_pmem_test (err -2)
>
> Removing the wrong modules:
>
> $ sudo rmmod nfit
> $ sudo rmmod libnvdimm
>
> Inserting the right modules manually:
>
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/libnvdimm.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_btt.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_pmem.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nfit.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem_core.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/device_dax.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/dax_pmem_compat.ko.xz
> $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
>
> The 'nfit_test' module is successfully inserted with *NO ERRORS* now:
>
> $ dmesg | tail
> [ 464.439504] nfit_test: mcsafe_test: disabled, skip.
> [ 464.500439] nfit_test nfit_test.0: failed to evaluate _FIT
> [ 464.507964] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail restore_fail flush_fail not_armed
> [ 464.507990] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
> [ 464.508614] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-only
> [ 464.508729] pmem6: detected capacity change from 0 to 33554432
> [ 464.508737] pmem7: detected capacity change from 0 to 4194304
>
> $ lsmod | grep nfit
> nfit_test 49152 8
> dax_pmem_compat 20480 1 nfit_test
> device_dax 20480 2 nfit_test,dax_pmem_compat
> dax_pmem 20480 1 nfit_test
> dax_pmem_core 20480 3 dax_pmem,nfit_test,dax_pmem_compat
> nfit 73728 1 nfit_test
> nd_pmem 24576 1 nfit_test
> libnvdimm 200704 8 dax_pmem,nfit_test,dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nd_blk,nfit
> nfit_test_iomap 24576 6 nfit_test,dax_pmem_core,device_dax,nd_pmem,libnvdimm,nfit
>
> Trying to remove and reinsert the 'nfit_test' module:
>
> $ sudo ndctl disable-region all
> disabled 8 regions
>
> $ sudo modprobe -v -r nfit_test
> rmmod nfit_test
> rmmod nfit
>
> $ sudo modprobe -v nfit_test
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
>
> $ dmesg | tail
> [ 919.861636] nfit_test: Unknown symbol acpi_nfit_test (err -2)
I'm still not sure how you are managing to hit "unknown symbol"
errors, are you re-running depmod after creating the test modules?
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^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-13 15:49 ` Dan Williams
@ 2020-03-16 8:58 ` Dorau, Lukasz
2020-03-17 8:26 ` Dan Williams
0 siblings, 1 reply; 9+ messages in thread
From: Dorau, Lukasz @ 2020-03-16 8:58 UTC (permalink / raw)
To: Williams, Dan J; +Cc: linux-nvdimm
On Friday, March 13, 2020 4:50 PM Dan Williams <dan.j.williams@intel.com> wrote:
> On Fri, Mar 13, 2020 at 3:06 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
> >
> > The steps to reproduce:
> >
> > $ sudo modprobe -v nfit_test
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/char/hw_random/rng-core.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/char/tpm/tpm.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/security/keys/trusted-keys/trusted.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz
> > install /usr/bin/ndctl load-keys ; /sbin/modprobe --ignore-install libnvdimm
> $CMDLINE_OPTS
> > No TPM handle discovered.
> > failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or directory
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/nvdimm/libnvdimm.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/test/nfit_test_iomap.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> unknown parameter (see dmesg)
> >
> > $ dmesg | tail
> > [ 102.769871] Key type encrypted registered
> > [ 102.799289] nfit_test_iomap: loading out-of-tree module taints kernel.
> > [ 102.804008] nfit_test: Unknown symbol libnvdimm_test (err -2)
> > [ 102.804054] nfit_test: Unknown symbol acpi_nfit_test (err -2)
> > [ 102.804118] nfit_test: Unknown symbol pmem_test (err -2)
> > [ 102.804164] nfit_test: Unknown symbol dax_pmem_core_test (err -2)
> > [ 102.804226] nfit_test: Unknown symbol dax_pmem_compat_test (err -2)
> > [ 102.804273] nfit_test: Unknown symbol device_dax_test (err -2)
> > [ 102.804308] nfit_test: Unknown symbol dax_pmem_test (err -2)
> >
> > Removing the wrong modules:
> >
> > $ sudo rmmod nfit
> > $ sudo rmmod libnvdimm
> >
> > Inserting the right modules manually:
> >
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/libnvdimm.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_btt.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/nd_pmem.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nfit.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/dax_pmem_core.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/dax_pmem.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/device_dax.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/dax_pmem_compat.ko.xz
> > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/extra/test/nfit_test.ko.xz
> >
> > The 'nfit_test' module is successfully inserted with *NO ERRORS* now:
> >
> > $ dmesg | tail
> > [ 464.439504] nfit_test: mcsafe_test: disabled, skip.
> > [ 464.500439] nfit_test nfit_test.0: failed to evaluate _FIT
> > [ 464.507964] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail
> restore_fail flush_fail not_armed
> > [ 464.507990] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
> > [ 464.508614] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-
> only
> > [ 464.508729] pmem6: detected capacity change from 0 to 33554432
> > [ 464.508737] pmem7: detected capacity change from 0 to 4194304
> >
> > $ lsmod | grep nfit
> > nfit_test 49152 8
> > dax_pmem_compat 20480 1 nfit_test
> > device_dax 20480 2 nfit_test,dax_pmem_compat
> > dax_pmem 20480 1 nfit_test
> > dax_pmem_core 20480 3 dax_pmem,nfit_test,dax_pmem_compat
> > nfit 73728 1 nfit_test
> > nd_pmem 24576 1 nfit_test
> > libnvdimm 200704 8
> dax_pmem,nfit_test,dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nd_blk,
> nfit
> > nfit_test_iomap 24576 6
> nfit_test,dax_pmem_core,device_dax,nd_pmem,libnvdimm,nfit
> >
> > Trying to remove and reinsert the 'nfit_test' module:
> >
> > $ sudo ndctl disable-region all
> > disabled 8 regions
> >
> > $ sudo modprobe -v -r nfit_test
> > rmmod nfit_test
> > rmmod nfit
> >
> > $ sudo modprobe -v nfit_test
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> unknown parameter (see dmesg)
> >
> > $ dmesg | tail
> > [ 919.861636] nfit_test: Unknown symbol acpi_nfit_test (err -2)
>
> I'm still not sure how you are managing to hit "unknown symbol"
> errors, are you re-running depmod after creating the test modules?
The above error:
"nfit_test: Unknown symbol acpi_nfit_test (err -2)"
I have hit after having removed the 'nfit_test' module:
$ sudo modprobe -v -r nfit_test
and having tried to reinsert it:
$ sudo modprobe -v nfit_test
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
because 'modprobe' has inserted the production version of the 'nfit' driver (kernel/drivers/acpi/nfit/nfit.ko.xz)
instead of the test one (extra/nfit.ko.xz).
Regarding 'depmod' I have run the following commands to build and install the kernel and the modules:
$ make
$ make M=tools/testing/nvdimm
$ sudo make M=tools/testing/nvdimm modules_install # ---> it runs depmod
$ sudo make modules_install # ---> it runs depmod
$ sudo make install
--
Lukasz
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-16 8:58 ` Dorau, Lukasz
@ 2020-03-17 8:26 ` Dan Williams
2020-03-17 9:09 ` Dorau, Lukasz
0 siblings, 1 reply; 9+ messages in thread
From: Dan Williams @ 2020-03-17 8:26 UTC (permalink / raw)
To: Dorau, Lukasz; +Cc: linux-nvdimm
On Mon, Mar 16, 2020 at 1:58 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
>
> On Friday, March 13, 2020 4:50 PM Dan Williams <dan.j.williams@intel.com> wrote:
> > On Fri, Mar 13, 2020 at 3:06 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
> > >
> > > The steps to reproduce:
> > >
> > > $ sudo modprobe -v nfit_test
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/char/hw_random/rng-core.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/char/tpm/tpm.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/security/keys/trusted-keys/trusted.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz
> > > install /usr/bin/ndctl load-keys ; /sbin/modprobe --ignore-install libnvdimm
> > $CMDLINE_OPTS
> > > No TPM handle discovered.
> > > failed to open file /etc/ndctl/keys/nvdimm-master.blob: No such file or directory
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/nvdimm/libnvdimm.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/test/nfit_test_iomap.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> > unknown parameter (see dmesg)
> > >
> > > $ dmesg | tail
> > > [ 102.769871] Key type encrypted registered
> > > [ 102.799289] nfit_test_iomap: loading out-of-tree module taints kernel.
> > > [ 102.804008] nfit_test: Unknown symbol libnvdimm_test (err -2)
> > > [ 102.804054] nfit_test: Unknown symbol acpi_nfit_test (err -2)
> > > [ 102.804118] nfit_test: Unknown symbol pmem_test (err -2)
> > > [ 102.804164] nfit_test: Unknown symbol dax_pmem_core_test (err -2)
> > > [ 102.804226] nfit_test: Unknown symbol dax_pmem_compat_test (err -2)
> > > [ 102.804273] nfit_test: Unknown symbol device_dax_test (err -2)
> > > [ 102.804308] nfit_test: Unknown symbol dax_pmem_test (err -2)
> > >
> > > Removing the wrong modules:
> > >
> > > $ sudo rmmod nfit
> > > $ sudo rmmod libnvdimm
> > >
> > > Inserting the right modules manually:
> > >
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/libnvdimm.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nd_btt.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/nd_pmem.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/nfit.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/dax_pmem_core.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/dax_pmem.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/device_dax.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/dax_pmem_compat.ko.xz
> > > $ sudo insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/extra/test/nfit_test.ko.xz
> > >
> > > The 'nfit_test' module is successfully inserted with *NO ERRORS* now:
> > >
> > > $ dmesg | tail
> > > [ 464.439504] nfit_test: mcsafe_test: disabled, skip.
> > > [ 464.500439] nfit_test nfit_test.0: failed to evaluate _FIT
> > > [ 464.507964] nfit_test nfit_test.1: Error found in NVDIMM nmem4 flags: save_fail
> > restore_fail flush_fail not_armed
> > > [ 464.507990] nfit_test nfit_test.1: Error found in NVDIMM nmem5 flags: map_fail
> > > [ 464.508614] nd_pmem namespace6.0: region6 read-only, marking pmem6 read-
> > only
> > > [ 464.508729] pmem6: detected capacity change from 0 to 33554432
> > > [ 464.508737] pmem7: detected capacity change from 0 to 4194304
> > >
> > > $ lsmod | grep nfit
> > > nfit_test 49152 8
> > > dax_pmem_compat 20480 1 nfit_test
> > > device_dax 20480 2 nfit_test,dax_pmem_compat
> > > dax_pmem 20480 1 nfit_test
> > > dax_pmem_core 20480 3 dax_pmem,nfit_test,dax_pmem_compat
> > > nfit 73728 1 nfit_test
> > > nd_pmem 24576 1 nfit_test
> > > libnvdimm 200704 8
> > dax_pmem,nfit_test,dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nd_blk,
> > nfit
> > > nfit_test_iomap 24576 6
> > nfit_test,dax_pmem_core,device_dax,nd_pmem,libnvdimm,nfit
> > >
> > > Trying to remove and reinsert the 'nfit_test' module:
> > >
> > > $ sudo ndctl disable-region all
> > > disabled 8 regions
> > >
> > > $ sudo modprobe -v -r nfit_test
> > > rmmod nfit_test
> > > rmmod nfit
> > >
> > > $ sudo modprobe -v nfit_test
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> > unknown parameter (see dmesg)
> > >
> > > $ dmesg | tail
> > > [ 919.861636] nfit_test: Unknown symbol acpi_nfit_test (err -2)
> >
> > I'm still not sure how you are managing to hit "unknown symbol"
> > errors, are you re-running depmod after creating the test modules?
>
> The above error:
> "nfit_test: Unknown symbol acpi_nfit_test (err -2)"
> I have hit after having removed the 'nfit_test' module:
> $ sudo modprobe -v -r nfit_test
> and having tried to reinsert it:
>
> $ sudo modprobe -v nfit_test
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or unknown parameter (see dmesg)
>
> because 'modprobe' has inserted the production version of the 'nfit' driver (kernel/drivers/acpi/nfit/nfit.ko.xz)
> instead of the test one (extra/nfit.ko.xz).
Right, that's broken, but I'm not sure why.
>
> Regarding 'depmod' I have run the following commands to build and install the kernel and the modules:
> $ make
> $ make M=tools/testing/nvdimm
> $ sudo make M=tools/testing/nvdimm modules_install # ---> it runs depmod
> $ sudo make modules_install # ---> it runs depmod
> $ sudo make install
What distro? On Fedora rawhide I'm doing the same steps and end up with:
# cat /lib/modules/$(uname -r)/modules.dep | grep nfit_test.ko
extra/test/nfit_test.ko: extra/dax_pmem.ko extra/dax_pmem_core.ko
extra/device_dax.ko extra/nd_pmem.ko extra/nd_btt.ko extra/nfit.ko
extra/libnvdimm.ko
kernel/security/keys/encrypted-keys/encrypted-keys.ko
kernel/security/keys/trusted-keys/trusted.ko
extra/test/nfit_test_iomap.ko kernel/drivers/char/tpm/tpm.ko
...i.e. the test version "extra/nfit.ko" in the dependency chain.
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^ permalink raw reply [flat|nested] 9+ messages in thread
* RE: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-17 8:26 ` Dan Williams
@ 2020-03-17 9:09 ` Dorau, Lukasz
2020-03-17 16:14 ` Dan Williams
0 siblings, 1 reply; 9+ messages in thread
From: Dorau, Lukasz @ 2020-03-17 9:09 UTC (permalink / raw)
To: Williams, Dan J; +Cc: linux-nvdimm
On Tuesday, March 17, 2020 9:26 AM Dan Williams <dan.j.williams@intel.com> wrote:
> On Mon, Mar 16, 2020 at 1:58 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
> > The above error:
> > "nfit_test: Unknown symbol acpi_nfit_test (err -2)"
> > I have hit after having removed the 'nfit_test' module:
> > $ sudo modprobe -v -r nfit_test
> > and having tried to reinsert it:
> >
> > $ sudo modprobe -v nfit_test
> > insmod /lib/modules/5.6.0-rc1-13504-
> g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> unknown parameter (see dmesg)
> >
> > because 'modprobe' has inserted the production version of the 'nfit' driver
> (kernel/drivers/acpi/nfit/nfit.ko.xz)
> > instead of the test one (extra/nfit.ko.xz).
>
> Right, that's broken, but I'm not sure why.
>
> >
> > Regarding 'depmod' I have run the following commands to build and install the
> kernel and the modules:
> > $ make
> > $ make M=tools/testing/nvdimm
> > $ sudo make M=tools/testing/nvdimm modules_install # ---> it runs depmod
> > $ sudo make modules_install # ---> it runs depmod
> > $ sudo make install
>
> What distro? On Fedora rawhide I'm doing the same steps and end up with:
Fedora release 31 (Thirty One)
>
> # cat /lib/modules/$(uname -r)/modules.dep | grep nfit_test.ko
> extra/test/nfit_test.ko: extra/dax_pmem.ko extra/dax_pmem_core.ko
> extra/device_dax.ko extra/nd_pmem.ko extra/nd_btt.ko extra/nfit.ko
> extra/libnvdimm.ko
> kernel/security/keys/encrypted-keys/encrypted-keys.ko
> kernel/security/keys/trusted-keys/trusted.ko
> extra/test/nfit_test_iomap.ko kernel/drivers/char/tpm/tpm.ko
>
> ...i.e. the test version "extra/nfit.ko" in the dependency chain.
On Fedora release 31 (Thirty One) I have the production version ("kernel/drivers/acpi/nfit/nfit.ko.xz") in the dependency chain:
$ cat /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/modules.dep | grep nfit_test.ko
extra/test/nfit_test.ko.xz: extra/test/nfit_test_iomap.ko.xz kernel/drivers/acpi/nfit/nfit.ko.xz kernel/drivers/nvdimm/libnvdimm.ko.xz kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz kernel/security/keys/trusted-keys/trusted.ko.xz kernel/drivers/char/tpm/tpm.ko.xz kernel/drivers/char/hw_random/rng-core.ko.xz
I do not want to use Fedora rawhide, because AFAIK ndctl does not compile on it.
All I need now is to know the distro & kernel the 'nfit_test' module works well with.
Do you know them?
--
Lukasz
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^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018
2020-03-17 9:09 ` Dorau, Lukasz
@ 2020-03-17 16:14 ` Dan Williams
0 siblings, 0 replies; 9+ messages in thread
From: Dan Williams @ 2020-03-17 16:14 UTC (permalink / raw)
To: Dorau, Lukasz; +Cc: linux-nvdimm
On Tue, Mar 17, 2020 at 2:09 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
>
> On Tuesday, March 17, 2020 9:26 AM Dan Williams <dan.j.williams@intel.com> wrote:
> > On Mon, Mar 16, 2020 at 1:58 AM Dorau, Lukasz <lukasz.dorau@intel.com> wrote:
> > > The above error:
> > > "nfit_test: Unknown symbol acpi_nfit_test (err -2)"
> > > I have hit after having removed the 'nfit_test' module:
> > > $ sudo modprobe -v -r nfit_test
> > > and having tried to reinsert it:
> > >
> > > $ sudo modprobe -v nfit_test
> > > insmod /lib/modules/5.6.0-rc1-13504-
> > g7b27a8622f80/kernel/drivers/acpi/nfit/nfit.ko.xz
> > > insmod /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/extra/test/nfit_test.ko.xz
> > > modprobe: ERROR: could not insert 'nfit_test': Unknown symbol in module, or
> > unknown parameter (see dmesg)
> > >
> > > because 'modprobe' has inserted the production version of the 'nfit' driver
> > (kernel/drivers/acpi/nfit/nfit.ko.xz)
> > > instead of the test one (extra/nfit.ko.xz).
> >
> > Right, that's broken, but I'm not sure why.
> >
> > >
> > > Regarding 'depmod' I have run the following commands to build and install the
> > kernel and the modules:
> > > $ make
> > > $ make M=tools/testing/nvdimm
> > > $ sudo make M=tools/testing/nvdimm modules_install # ---> it runs depmod
> > > $ sudo make modules_install # ---> it runs depmod
> > > $ sudo make install
> >
> > What distro? On Fedora rawhide I'm doing the same steps and end up with:
>
> Fedora release 31 (Thirty One)
>
> >
> > # cat /lib/modules/$(uname -r)/modules.dep | grep nfit_test.ko
> > extra/test/nfit_test.ko: extra/dax_pmem.ko extra/dax_pmem_core.ko
> > extra/device_dax.ko extra/nd_pmem.ko extra/nd_btt.ko extra/nfit.ko
> > extra/libnvdimm.ko
> > kernel/security/keys/encrypted-keys/encrypted-keys.ko
> > kernel/security/keys/trusted-keys/trusted.ko
> > extra/test/nfit_test_iomap.ko kernel/drivers/char/tpm/tpm.ko
> >
> > ...i.e. the test version "extra/nfit.ko" in the dependency chain.
>
> On Fedora release 31 (Thirty One) I have the production version ("kernel/drivers/acpi/nfit/nfit.ko.xz") in the dependency chain:
>
> $ cat /lib/modules/5.6.0-rc1-13504-g7b27a8622f80/modules.dep | grep nfit_test.ko
> extra/test/nfit_test.ko.xz: extra/test/nfit_test_iomap.ko.xz kernel/drivers/acpi/nfit/nfit.ko.xz kernel/drivers/nvdimm/libnvdimm.ko.xz kernel/security/keys/encrypted-keys/encrypted-keys.ko.xz kernel/security/keys/trusted-keys/trusted.ko.xz kernel/drivers/char/tpm/tpm.ko.xz kernel/drivers/char/hw_random/rng-core.ko.xz
>
> I do not want to use Fedora rawhide, because AFAIK ndctl does not compile on it.
> All I need now is to know the distro & kernel the 'nfit_test' module works well with.
> Do you know them?
Yes, any Fedora should be fine. When I say I'm using Rawhide I've used
it for years and have not hit this issue which means I used it when
Rawhide was equivalent to Fedora 31. Try running the module install
sequence a second time. The first time through it establishes the
dependencies of test modules on production, but I think it needs the
test modules already installed to resolve dependencies the other
direction. The other thing that might be contributing to broken
dependencies is that you seem to have CONFIG_LOCALVERSION_AUTO
enabled. The effect is that any change to the kernel tree will result
in a brand new module directory and exacerbate the dependency problem.
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^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2020-03-17 16:14 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-12 14:59 nfit_test: issue #3: BUG: kernel NULL pointer dereference, address: 0000000000000018 Dorau, Lukasz
2020-03-12 15:06 ` Dorau, Lukasz
2020-03-12 17:08 ` Dan Williams
2020-03-13 10:06 ` Dorau, Lukasz
2020-03-13 15:49 ` Dan Williams
2020-03-16 8:58 ` Dorau, Lukasz
2020-03-17 8:26 ` Dan Williams
2020-03-17 9:09 ` Dorau, Lukasz
2020-03-17 16:14 ` Dan Williams
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