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 =?UTF-8?Q?_points_to_track_server_copy_progress?=
To:     "Hanxiao Chen (Fujitsu)" <chenhx.fnst@fujitsu.com>,
        "chuck.lever@oracle.com" <chuck.lever@oracle.com>,
        "jlayton@kernel.org" <jlayton@kernel.org>
Cc:     "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>
References: <1693510547-29288-1-git-send-email-dai.ngo@oracle.com>
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Hi Chen,

Did you also apply this patch:

[PATCH 1/2] NFSD: initialize copy->cp_clp early in nfsd4_copy for use by trace point

This patch is a prerequisite for
[PATCH v2 1/1] NFSD: add trace points to track server copy progress

Sorry for the confusion.

-Dai

On 9/11/23 7:39 PM, Hanxiao Chen (Fujitsu) wrote:
>> -----邮件原件-----
>> 发件人: Dai Ngo <dai.ngo@oracle.com>
>> 发送时间: 2023年9月1日 3:36
>> 收件人: chuck.lever@oracle.com; jlayton@kernel.org
>> 抄送: linux-nfs@vger.kernel.org
>> 主题: [PATCH v2 1/1] NFSD: add trace points to track server copy progress
>>
>> Add trace points on destination server to track inter and intra server copy
>> operations.
>>
>> Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
>> ---
>> v2: rename trace points from nfsd4_trace_... to nfsd_trace_...
>>      fix kernel test robot by removing ifdef CONFIG_NFS_V4_2 in trace.h
>>
> Hi, Dai
>
> 	I'm testing this patch base on 7ba2090ca64ea1aa435744884124387db1fac70f via Fedora 38.
>   	but got some oops message.
> 	Pls have a look.
>
> Regards,
> - Chen
>
> How to reproduce:
> server:
> trace-cmd record -e nfsd:nfsd_copy*
>
> client
> mount -o vers=4.2 192.168.122.212:/nfstest /mnt/test
> mount -o vers=4.2 192.168.122.212:/nfsscratch /mnt/scratch
>
>
> cp /mnt/test/some-file.tgz /mnt/scratch
>
>
> [  713.008623] CPU: 0 PID: 1562 Comm: nfsd Kdump: loaded Not tainted 6.5.0+ #14
> [  713.008660] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.13.0-2.module+el8.3.0+7353+9de0a3cc 04/01/2014
> [  713.008699] RIP: 0010:trace_event_raw_event_nfsd_copy_class+0xd6/0x140 [nfsd]
> [  713.008868] Code: 48 8b 53 20 48 89 50 30 48 8b 53 28 48 89 50 38 48 8b 53 30 48 89 50 40 48 8b b3 f8 00 00 00 48 8d 50 4c 48 8d 8e b8 00 00 00 <48> 8b b6 b8 00 00 00 48 89 70 4c 48 8b 41 08 48 89 42 08 48 8b 41
> [  713.008944] RSP: 0018:ff22381280edfd78 EFLAGS: 00010202
> [  713.008972] RAX: ff12ee8a8007701c RBX: ff12ee8a820988e0 RCX: 00000000000000b8
> [  713.009004] RDX: ff12ee8a80077068 RSI: 0000000000000000 RDI: ff22381280edfd78
> [  713.009036] RBP: ff12ee8a90afdf00 R08: 0000000000000001 R09: 0000000000000000
> [  713.009055] R10: 0000000000000000 R11: 0000000000038560 R12: ff22381280edfd78
> [  713.009064] R13: ff12ee8a959b4000 R14: 0000000000000000 R15: ff12ee8a820988c0
> [  713.009074] FS:  0000000000000000(0000) GS:ff12ee8afba00000(0000) knlGS:0000000000000000
> [  713.009084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  713.009091] CR2: 00000000000000b8 CR3: 0000000110970004 CR4: 0000000000771ef0
> [  713.009104] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [  713.009113] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [  713.009123] PKRU: 55555554
> [  713.009127] Call Trace:
> [  713.009134]  <TASK>
> [  713.009139]  ? __die+0x1f/0x70
> [  713.009148]  ? page_fault_oops+0x171/0x4f0
> [  713.009157]  ? __kmem_cache_alloc_node+0x175/0x310
> [  713.009167]  ? security_prepare_creds+0xc5/0xe0
> [  713.009177]  ? exc_page_fault+0x7b/0x180
> [  713.009186]  ? asm_exc_page_fault+0x22/0x30
> [  713.009195]  ? trace_event_raw_event_nfsd_copy_class+0xd6/0x140 [nfsd]
> [  713.009237]  ? trace_event_raw_event_nfsd_copy_class+0x4b/0x140 [nfsd]
> [  713.009274]  nfsd4_copy+0x47d/0x6e0 [nfsd]
> [  713.009319]  nfsd4_proc_compound+0x399/0x6f0 [nfsd]
> [  713.009360]  ? __pfx_nfsd+0x10/0x10 [nfsd]
> [  713.009401]  nfsd_dispatch+0x80/0x1b0 [nfsd]
> [  713.009442]  svc_process_common+0x439/0x6e0 [sunrpc]
> [  713.009510]  ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
> [  713.009551]  ? __pfx_nfsd+0x10/0x10 [nfsd]
> [  713.009599]  svc_process+0x12d/0x170 [sunrpc]
> [  713.009890]  nfsd+0x80/0xd0 [nfsd]
> [  713.010142]  kthread+0xf0/0x120
> [  713.010352]  ? __pfx_kthread+0x10/0x10
> [  713.010569]  ret_from_fork+0x2d/0x50
> [  713.010771]  ? __pfx_kthread+0x10/0x10
> [  713.010972]  ret_from_fork_asm+0x1b/0x30
> [  713.011176]  </TASK>
> [  713.011374] Modules linked in: rpcsec_gss_krb5 rpcrdma rdma_cm iw_cm ib_cm ib_core nfsd auth_rpcgss nfs_acl lockd grace 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 sunrpc ip_set nf_tables nfnetlink qrtr intel_rapl_msr intel_rapl_common nfit libnvdimm kvm_intel kvm snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec iTCO_wdt irqbypass intel_pmc_bxt snd_hda_core iTCO_vendor_support snd_hwdep snd_pcm snd_timer snd i2c_i801 i2c_smbus pcspkr lpc_ich soundcore virtio_balloon joydev fuse loop zram xfs crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel qxl sha512_ssse3 drm_ttm_helper virtio_net ttm virtio_blk net_failover virtio_console failover serio_raw scsi_dh_rdac scsi_dh_emc scsi_dh_alua dm_multipath qemu_fw_cfg
> [  713.013232] CR2: 00000000000000b8
> [  713.013460] ---[ end trace 0000000000000000 ]---
> [  713.013688] RIP: 0010:trace_event_raw_event_nfsd_copy_class+0xd6/0x140 [nfsd]
> [  713.013944] Code: 48 8b 53 20 48 89 50 30 48 8b 53 28 48 89 50 38 48 8b 53 30 48 89 50 40 48 8b b3 f8 00 00 00 48 8d 50 4c 48 8d 8e b8 00 00 00 <48> 8b b6 b8 00 00 00 48 89 70 4c 48 8b 41 08 48 89 42 08 48 8b 41
> [  713.014406] RSP: 0018:ff22381280edfd78 EFLAGS: 00010202
> [  713.014644] RAX: ff12ee8a8007701c RBX: ff12ee8a820988e0 RCX: 00000000000000b8
> [  713.014880] RDX: ff12ee8a80077068 RSI: 0000000000000000 RDI: ff22381280edfd78
> [  713.015117] RBP: ff12ee8a90afdf00 R08: 0000000000000001 R09: 0000000000000000
> [  713.015351] R10: 0000000000000000 R11: 0000000000038560 R12: ff22381280edfd78
> [  713.015590] R13: ff12ee8a959b4000 R14: 0000000000000000 R15: ff12ee8a820988c0
> [  713.015821] FS:  0000000000000000(0000) GS:ff12ee8afba00000(0000) knlGS:0000000000000000
> [  713.016057] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  713.016296] CR2: 00000000000000b8 CR3: 0000000110970004 CR4: 0000000000771ef0
> [  713.016536] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [  713.016778] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [  713.017019] PKRU: 55555554
> [  713.017263] note: nfsd[1562] exited with irqs disabled
> [  713.017532] note: nfsd[1562] exited with preempt_count 2
> [  835.057703] ------------[ cut here ]------------
> [  835.058376] WARNING: CPU: 2 PID: 1712 at kernel/trace/ring_buffer.c:5304 reset_disabled_cpu_buffer+0x254/0x270
> [  835.058643] Modules linked in: rpcsec_gss_krb5 rpcrdma rdma_cm iw_cm ib_cm ib_core nfsd auth_rpcgss nfs_acl lockd grace 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 sunrpc ip_set nf_tables nfnetlink qrtr intel_rapl_msr intel_rapl_common nfit libnvdimm kvm_intel kvm snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec iTCO_wdt irqbypass intel_pmc_bxt snd_hda_core iTCO_vendor_support snd_hwdep snd_pcm snd_timer snd i2c_i801 i2c_smbus pcspkr lpc_ich soundcore virtio_balloon joydev fuse loop zram xfs crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel qxl sha512_ssse3 drm_ttm_helper virtio_net ttm virtio_blk net_failover virtio_console failover serio_raw scsi_dh_rdac scsi_dh_emc scsi_dh_alua dm_multipath qemu_fw_cfg
> [  835.060996] CPU: 2 PID: 1712 Comm: trace-cmd Kdump: loaded Tainted: G      D            6.5.0+ #14
> [  835.061311] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.13.0-2.module+el8.3.0+7353+9de0a3cc 04/01/2014
> [  835.061633] RIP: 0010:reset_disabled_cpu_buffer+0x254/0x270
> [  835.061952] Code: 28 01 00 00 00 00 00 00 4c 89 e7 e8 56 13 d7 00 90 5b 48 89 ee 4c 89 ef 5d 41 5c 41 5d e9 c4 0a d7 00 48 8b 43 10 f0 ff 40 08 <0f> 0b eb e3 89 c6 4c 89 e7 e8 2e 16 d7 00 90 e9 d4 fd ff ff 0f 1f
> [  835.062611] RSP: 0018:ff2238128073bbd0 EFLAGS: 00010002
> [  835.062945] RAX: ff12ee8a8003e700 RBX: ff12ee8a80040c00 RCX: 0000000000000000
> [  835.063282] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
> [  835.063619] RBP: 0000000000000206 R08: 0000000000000000 R09: 0000000000000000
> [  835.063941] R10: 0000000000000001 R11: 0000000000000100 R12: ff12ee8a8003e700
> [  835.064260] R13: ff12ee8a80040c18 R14: ff12ee8a82d4ac98 R15: ff12ee8a82d4ac00
> [  835.064576] FS:  00007f433e809780(0000) GS:ff12ee8afbb00000(0000) knlGS:0000000000000000
> [  835.064884] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  835.065190] CR2: 00005635914ef0f8 CR3: 0000000110970006 CR4: 0000000000771ee0
> [  835.065495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [  835.065788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [  835.066082] PKRU: 55555554
> [  835.066374] Call Trace:
> [  835.066666]  <TASK>
> [  835.066943]  ? reset_disabled_cpu_buffer+0x254/0x270
> [  835.067216]  ? __warn+0x7d/0x130
> [  835.067488]  ? reset_disabled_cpu_buffer+0x254/0x270
> [  835.067761]  ? report_bug+0x18d/0x1c0
> [  835.068029]  ? handle_bug+0x3c/0x80
> [  835.068294]  ? exc_invalid_op+0x13/0x60
> [  835.068558]  ? asm_exc_invalid_op+0x16/0x20
> [  835.068827]  ? reset_disabled_cpu_buffer+0x254/0x270
> [  835.069087]  ring_buffer_reset_online_cpus+0x7e/0xc0
> [  835.069346]  tracing_reset_online_cpus+0x6e/0xc0
> [  835.069610]  tracing_open+0x143/0x160
> [  835.069864]  ? __pfx_tracing_open+0x10/0x10
> [  835.070120]  do_dentry_open+0x200/0x4f0
> [  835.070371]  path_openat+0xafe/0x1160
> [  835.070627]  do_filp_open+0xaf/0x160
> [  835.070880]  do_sys_openat2+0xab/0xe0
> [  835.071129]  ? kmem_cache_free+0x1e/0x3e0
> [  835.071380]  __x64_sys_openat+0x53/0xa0
> [  835.071636]  do_syscall_64+0x59/0x90
> [  835.071883]  ? syscall_exit_to_user_mode+0x27/0x40
> [  835.072128]  ? do_syscall_64+0x68/0x90
> [  835.072367]  ? syscall_exit_to_user_mode+0x27/0x40
> [  835.072604]  ? do_syscall_64+0x68/0x90
> [  835.072825]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8
> [  835.073044] RIP: 0033:0x7f433e918015
> [  835.073254] Code: 83 e2 40 75 50 89 f0 f7 d0 a9 00 00 41 00 74 45 80 3d d6 c5 0d 00 00 74 60 89 da 4c 89 e6 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 7f 00 00 00 48 8b 55 b8 64 48 2b 14 25 28
> [  835.073690] RSP: 002b:00007ffd20591490 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
> [  835.073904] RAX: ffffffffffffffda RBX: 0000000000000241 RCX: 00007f433e918015
> [  835.074116] RDX: 0000000000000241 RSI: 00005635914db9c0 RDI: 00000000ffffff9c
> [  835.074325] RBP: 00007ffd20591500 R08: 0000000000000004 R09: 0000000000000001
> [  835.074532] R10: 00000000000001b6 R11: 0000000000000202 R12: 00005635914db9c0
> [  835.074736] R13: 000056359037a976 R14: 000056359037a976 R15: 0000000000000001
> [  835.074933]  </TASK>
> [  835.075121] ---[ end trace 0000000000000000 ]---
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