Why does dynamic debug control not print any variables?

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I have checked the outputs of dynamic debug functions (more specifically netdev_dbg) in sys/kernel/debug/dynamic_debug/control file. The output has all static characters in formatting string (like %d for integer) but the string for the type of expected data type is not replaced by actual value. Any help would be appreciated. Following is the content of a portion of the file:



drivers/misc/mei/hw-me.c:994 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit ret = %d12"
drivers/misc/mei/hw-me.c:970 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit wait not needed12"
drivers/misc/mei/hw-me.c:963 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit not needed12"
drivers/misc/mei/hw-me.c:940 [mei_me]mei_me_d0i3_enter =_ "d0i3 enter12"
drivers/misc/mei/hw-me.c:932 [mei_me]mei_me_d0i3_enter =_ "already d0i3 : set not needed12"
drivers/misc/mei/hw-me.c:910 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter ret = %d12"
drivers/misc/mei/hw-me.c:887 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter wait not needed12"
drivers/misc/mei/hw-me.c:859 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 set not needed12"
drivers/misc/mei/hw-me.c:794 [mei_me]mei_me_pg_is_enabled =_ "pg: not supported: d0i3 = %d HGP = %d hbm version %d.%d ?= %d.%d12"
drivers/misc/mei/hw-me.c:590 [mei_me]mei_me_count_full_read_slots =_ "filled_slots =%08x12"
drivers/misc/mei/hw-me.c:541 [mei_me]mei_me_hbuf_write =_ "empty slots = %hu.12"
drivers/misc/mei/hw-me.c:538 [mei_me]mei_me_hbuf_write =_ "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d"
drivers/misc/mei/hw-me.c:445 [mei_me]mei_me_hw_start =_ "hw is ready12"
sound/core/init.c:116 [snd]init_info_for_card =_ "unable to create card entry12"
sound/core/control.c:1537 [snd]snd_ctl_ioctl =_ "unknown ioctl = 0x%x12"
sound/core/device.c:156 [snd]snd_device_free =_ "device free %p (from %pF), not found12"
sound/core/device.c:132 [snd]snd_device_disconnect =_ "device disconnect %p (from %pF), not found12"
sound/core/timer.c:262 [snd_timer]snd_timer_open =_ "ALSA: timer: invalid slave class %i12"
net/bluetooth/af_bluetooth.c:574 [bluetooth]bt_sock_wait_ready =_ "sk %p12"
net/bluetooth/af_bluetooth.c:537 [bluetooth]bt_sock_wait_state =_ "sk %p12"
net/bluetooth/af_bluetooth.c:490 [bluetooth]bt_sock_ioctl =_ "sk %p cmd %x arg %lx12"
net/bluetooth/af_bluetooth.c:446 [bluetooth]bt_sock_poll =_ "sock %p, sk %p12"
net/bluetooth/af_bluetooth.c:330 [bluetooth]bt_sock_stream_recvmsg =_ "sk %p size %zu12"
net/bluetooth/af_bluetooth.c:251 [bluetooth]bt_sock_recvmsg =_ "sock %p sk %p len %zu12"
net/bluetooth/af_bluetooth.c:203 [bluetooth]bt_accept_dequeue =_ "sk %p, already unlinked12"
net/bluetooth/af_bluetooth.c:189 [bluetooth]bt_accept_dequeue =_ "parent %p12"
net/bluetooth/af_bluetooth.c:175 [bluetooth]bt_accept_unlink =_ "sk %p state %d12"
net/bluetooth/af_bluetooth.c:159 [bluetooth]bt_accept_enqueue =_ "parent %p, sk %p12"
net/bluetooth/hci_core.c:4263 [bluetooth]hci_cmd_work =_ "%s cmd_cnt %d cmd queued %d12"
net/bluetooth/hci_core.c:4246 [bluetooth]hci_rx_work =_ "%s SCO data packet12"
net/bluetooth/hci_core.c:4241 [bluetooth]hci_rx_work =_ "%s ACL data packet12"
net/bluetooth/hci_core.c:4236 [bluetooth]hci_rx_work =_ "%s Event packet12"
net/bluetooth/hci_core.c:4207 [bluetooth]hci_rx_work =_ "%s12"
net/bluetooth/hci_core.c:4147 [bluetooth]hci_req_cmd_complete =_ "opcode 0x%04x status 0x%02x12"
net/bluetooth/hci_core.c:4087 [bluetooth]hci_scodata_packet =_ "%s len %d handle 0x%4.4x12"
net/bluetooth/hci_core.c:4054 [bluetooth]hci_acldata_packet =_ "%s len %d handle 0x%4.4x flags 0x%4.4x12"
net/bluetooth/hci_core.c:4023 [bluetooth]hci_tx_work =_ "%s acl %d sco %d le %d12"
net/bluetooth/hci_core.c:3991 [bluetooth]hci_sched_le =_ "chan %p skb %p len %d priority %u12"
net/bluetooth/hci_core.c:3972 [bluetooth]hci_sched_le =_ "%s12"
net/bluetooth/hci_core.c:3956 [bluetooth]hci_sched_esco =_ "skb %p len %d12"
net/bluetooth/hci_core.c:3948 [bluetooth]hci_sched_esco =_ "%s12"
net/bluetooth/hci_core.c:3932 [bluetooth]hci_sched_sco =_ "skb %p len %d12"





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    I have checked the outputs of dynamic debug functions (more specifically netdev_dbg) in sys/kernel/debug/dynamic_debug/control file. The output has all static characters in formatting string (like %d for integer) but the string for the type of expected data type is not replaced by actual value. Any help would be appreciated. Following is the content of a portion of the file:



    drivers/misc/mei/hw-me.c:994 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit ret = %d12"
    drivers/misc/mei/hw-me.c:970 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit wait not needed12"
    drivers/misc/mei/hw-me.c:963 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit not needed12"
    drivers/misc/mei/hw-me.c:940 [mei_me]mei_me_d0i3_enter =_ "d0i3 enter12"
    drivers/misc/mei/hw-me.c:932 [mei_me]mei_me_d0i3_enter =_ "already d0i3 : set not needed12"
    drivers/misc/mei/hw-me.c:910 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter ret = %d12"
    drivers/misc/mei/hw-me.c:887 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter wait not needed12"
    drivers/misc/mei/hw-me.c:859 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 set not needed12"
    drivers/misc/mei/hw-me.c:794 [mei_me]mei_me_pg_is_enabled =_ "pg: not supported: d0i3 = %d HGP = %d hbm version %d.%d ?= %d.%d12"
    drivers/misc/mei/hw-me.c:590 [mei_me]mei_me_count_full_read_slots =_ "filled_slots =%08x12"
    drivers/misc/mei/hw-me.c:541 [mei_me]mei_me_hbuf_write =_ "empty slots = %hu.12"
    drivers/misc/mei/hw-me.c:538 [mei_me]mei_me_hbuf_write =_ "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d"
    drivers/misc/mei/hw-me.c:445 [mei_me]mei_me_hw_start =_ "hw is ready12"
    sound/core/init.c:116 [snd]init_info_for_card =_ "unable to create card entry12"
    sound/core/control.c:1537 [snd]snd_ctl_ioctl =_ "unknown ioctl = 0x%x12"
    sound/core/device.c:156 [snd]snd_device_free =_ "device free %p (from %pF), not found12"
    sound/core/device.c:132 [snd]snd_device_disconnect =_ "device disconnect %p (from %pF), not found12"
    sound/core/timer.c:262 [snd_timer]snd_timer_open =_ "ALSA: timer: invalid slave class %i12"
    net/bluetooth/af_bluetooth.c:574 [bluetooth]bt_sock_wait_ready =_ "sk %p12"
    net/bluetooth/af_bluetooth.c:537 [bluetooth]bt_sock_wait_state =_ "sk %p12"
    net/bluetooth/af_bluetooth.c:490 [bluetooth]bt_sock_ioctl =_ "sk %p cmd %x arg %lx12"
    net/bluetooth/af_bluetooth.c:446 [bluetooth]bt_sock_poll =_ "sock %p, sk %p12"
    net/bluetooth/af_bluetooth.c:330 [bluetooth]bt_sock_stream_recvmsg =_ "sk %p size %zu12"
    net/bluetooth/af_bluetooth.c:251 [bluetooth]bt_sock_recvmsg =_ "sock %p sk %p len %zu12"
    net/bluetooth/af_bluetooth.c:203 [bluetooth]bt_accept_dequeue =_ "sk %p, already unlinked12"
    net/bluetooth/af_bluetooth.c:189 [bluetooth]bt_accept_dequeue =_ "parent %p12"
    net/bluetooth/af_bluetooth.c:175 [bluetooth]bt_accept_unlink =_ "sk %p state %d12"
    net/bluetooth/af_bluetooth.c:159 [bluetooth]bt_accept_enqueue =_ "parent %p, sk %p12"
    net/bluetooth/hci_core.c:4263 [bluetooth]hci_cmd_work =_ "%s cmd_cnt %d cmd queued %d12"
    net/bluetooth/hci_core.c:4246 [bluetooth]hci_rx_work =_ "%s SCO data packet12"
    net/bluetooth/hci_core.c:4241 [bluetooth]hci_rx_work =_ "%s ACL data packet12"
    net/bluetooth/hci_core.c:4236 [bluetooth]hci_rx_work =_ "%s Event packet12"
    net/bluetooth/hci_core.c:4207 [bluetooth]hci_rx_work =_ "%s12"
    net/bluetooth/hci_core.c:4147 [bluetooth]hci_req_cmd_complete =_ "opcode 0x%04x status 0x%02x12"
    net/bluetooth/hci_core.c:4087 [bluetooth]hci_scodata_packet =_ "%s len %d handle 0x%4.4x12"
    net/bluetooth/hci_core.c:4054 [bluetooth]hci_acldata_packet =_ "%s len %d handle 0x%4.4x flags 0x%4.4x12"
    net/bluetooth/hci_core.c:4023 [bluetooth]hci_tx_work =_ "%s acl %d sco %d le %d12"
    net/bluetooth/hci_core.c:3991 [bluetooth]hci_sched_le =_ "chan %p skb %p len %d priority %u12"
    net/bluetooth/hci_core.c:3972 [bluetooth]hci_sched_le =_ "%s12"
    net/bluetooth/hci_core.c:3956 [bluetooth]hci_sched_esco =_ "skb %p len %d12"
    net/bluetooth/hci_core.c:3948 [bluetooth]hci_sched_esco =_ "%s12"
    net/bluetooth/hci_core.c:3932 [bluetooth]hci_sched_sco =_ "skb %p len %d12"





    kernel debug







    share|improve this question

























      up vote
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      up vote
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      down vote

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      I have checked the outputs of dynamic debug functions (more specifically netdev_dbg) in sys/kernel/debug/dynamic_debug/control file. The output has all static characters in formatting string (like %d for integer) but the string for the type of expected data type is not replaced by actual value. Any help would be appreciated. Following is the content of a portion of the file:



      drivers/misc/mei/hw-me.c:994 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit ret = %d12"
      drivers/misc/mei/hw-me.c:970 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit wait not needed12"
      drivers/misc/mei/hw-me.c:963 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit not needed12"
      drivers/misc/mei/hw-me.c:940 [mei_me]mei_me_d0i3_enter =_ "d0i3 enter12"
      drivers/misc/mei/hw-me.c:932 [mei_me]mei_me_d0i3_enter =_ "already d0i3 : set not needed12"
      drivers/misc/mei/hw-me.c:910 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter ret = %d12"
      drivers/misc/mei/hw-me.c:887 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter wait not needed12"
      drivers/misc/mei/hw-me.c:859 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 set not needed12"
      drivers/misc/mei/hw-me.c:794 [mei_me]mei_me_pg_is_enabled =_ "pg: not supported: d0i3 = %d HGP = %d hbm version %d.%d ?= %d.%d12"
      drivers/misc/mei/hw-me.c:590 [mei_me]mei_me_count_full_read_slots =_ "filled_slots =%08x12"
      drivers/misc/mei/hw-me.c:541 [mei_me]mei_me_hbuf_write =_ "empty slots = %hu.12"
      drivers/misc/mei/hw-me.c:538 [mei_me]mei_me_hbuf_write =_ "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d"
      drivers/misc/mei/hw-me.c:445 [mei_me]mei_me_hw_start =_ "hw is ready12"
      sound/core/init.c:116 [snd]init_info_for_card =_ "unable to create card entry12"
      sound/core/control.c:1537 [snd]snd_ctl_ioctl =_ "unknown ioctl = 0x%x12"
      sound/core/device.c:156 [snd]snd_device_free =_ "device free %p (from %pF), not found12"
      sound/core/device.c:132 [snd]snd_device_disconnect =_ "device disconnect %p (from %pF), not found12"
      sound/core/timer.c:262 [snd_timer]snd_timer_open =_ "ALSA: timer: invalid slave class %i12"
      net/bluetooth/af_bluetooth.c:574 [bluetooth]bt_sock_wait_ready =_ "sk %p12"
      net/bluetooth/af_bluetooth.c:537 [bluetooth]bt_sock_wait_state =_ "sk %p12"
      net/bluetooth/af_bluetooth.c:490 [bluetooth]bt_sock_ioctl =_ "sk %p cmd %x arg %lx12"
      net/bluetooth/af_bluetooth.c:446 [bluetooth]bt_sock_poll =_ "sock %p, sk %p12"
      net/bluetooth/af_bluetooth.c:330 [bluetooth]bt_sock_stream_recvmsg =_ "sk %p size %zu12"
      net/bluetooth/af_bluetooth.c:251 [bluetooth]bt_sock_recvmsg =_ "sock %p sk %p len %zu12"
      net/bluetooth/af_bluetooth.c:203 [bluetooth]bt_accept_dequeue =_ "sk %p, already unlinked12"
      net/bluetooth/af_bluetooth.c:189 [bluetooth]bt_accept_dequeue =_ "parent %p12"
      net/bluetooth/af_bluetooth.c:175 [bluetooth]bt_accept_unlink =_ "sk %p state %d12"
      net/bluetooth/af_bluetooth.c:159 [bluetooth]bt_accept_enqueue =_ "parent %p, sk %p12"
      net/bluetooth/hci_core.c:4263 [bluetooth]hci_cmd_work =_ "%s cmd_cnt %d cmd queued %d12"
      net/bluetooth/hci_core.c:4246 [bluetooth]hci_rx_work =_ "%s SCO data packet12"
      net/bluetooth/hci_core.c:4241 [bluetooth]hci_rx_work =_ "%s ACL data packet12"
      net/bluetooth/hci_core.c:4236 [bluetooth]hci_rx_work =_ "%s Event packet12"
      net/bluetooth/hci_core.c:4207 [bluetooth]hci_rx_work =_ "%s12"
      net/bluetooth/hci_core.c:4147 [bluetooth]hci_req_cmd_complete =_ "opcode 0x%04x status 0x%02x12"
      net/bluetooth/hci_core.c:4087 [bluetooth]hci_scodata_packet =_ "%s len %d handle 0x%4.4x12"
      net/bluetooth/hci_core.c:4054 [bluetooth]hci_acldata_packet =_ "%s len %d handle 0x%4.4x flags 0x%4.4x12"
      net/bluetooth/hci_core.c:4023 [bluetooth]hci_tx_work =_ "%s acl %d sco %d le %d12"
      net/bluetooth/hci_core.c:3991 [bluetooth]hci_sched_le =_ "chan %p skb %p len %d priority %u12"
      net/bluetooth/hci_core.c:3972 [bluetooth]hci_sched_le =_ "%s12"
      net/bluetooth/hci_core.c:3956 [bluetooth]hci_sched_esco =_ "skb %p len %d12"
      net/bluetooth/hci_core.c:3948 [bluetooth]hci_sched_esco =_ "%s12"
      net/bluetooth/hci_core.c:3932 [bluetooth]hci_sched_sco =_ "skb %p len %d12"





      kernel debug







      share|improve this question















      I have checked the outputs of dynamic debug functions (more specifically netdev_dbg) in sys/kernel/debug/dynamic_debug/control file. The output has all static characters in formatting string (like %d for integer) but the string for the type of expected data type is not replaced by actual value. Any help would be appreciated. Following is the content of a portion of the file:



      drivers/misc/mei/hw-me.c:994 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit ret = %d12"
      drivers/misc/mei/hw-me.c:970 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit wait not needed12"
      drivers/misc/mei/hw-me.c:963 [mei_me]mei_me_d0i3_exit_sync =_ "d0i3 exit not needed12"
      drivers/misc/mei/hw-me.c:940 [mei_me]mei_me_d0i3_enter =_ "d0i3 enter12"
      drivers/misc/mei/hw-me.c:932 [mei_me]mei_me_d0i3_enter =_ "already d0i3 : set not needed12"
      drivers/misc/mei/hw-me.c:910 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter ret = %d12"
      drivers/misc/mei/hw-me.c:887 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 enter wait not needed12"
      drivers/misc/mei/hw-me.c:859 [mei_me]mei_me_d0i3_enter_sync =_ "d0i3 set not needed12"
      drivers/misc/mei/hw-me.c:794 [mei_me]mei_me_pg_is_enabled =_ "pg: not supported: d0i3 = %d HGP = %d hbm version %d.%d ?= %d.%d12"
      drivers/misc/mei/hw-me.c:590 [mei_me]mei_me_count_full_read_slots =_ "filled_slots =%08x12"
      drivers/misc/mei/hw-me.c:541 [mei_me]mei_me_hbuf_write =_ "empty slots = %hu.12"
      drivers/misc/mei/hw-me.c:538 [mei_me]mei_me_hbuf_write =_ "hdr:host=%02d me=%02d len=%d internal=%1d comp=%1d"
      drivers/misc/mei/hw-me.c:445 [mei_me]mei_me_hw_start =_ "hw is ready12"
      sound/core/init.c:116 [snd]init_info_for_card =_ "unable to create card entry12"
      sound/core/control.c:1537 [snd]snd_ctl_ioctl =_ "unknown ioctl = 0x%x12"
      sound/core/device.c:156 [snd]snd_device_free =_ "device free %p (from %pF), not found12"
      sound/core/device.c:132 [snd]snd_device_disconnect =_ "device disconnect %p (from %pF), not found12"
      sound/core/timer.c:262 [snd_timer]snd_timer_open =_ "ALSA: timer: invalid slave class %i12"
      net/bluetooth/af_bluetooth.c:574 [bluetooth]bt_sock_wait_ready =_ "sk %p12"
      net/bluetooth/af_bluetooth.c:537 [bluetooth]bt_sock_wait_state =_ "sk %p12"
      net/bluetooth/af_bluetooth.c:490 [bluetooth]bt_sock_ioctl =_ "sk %p cmd %x arg %lx12"
      net/bluetooth/af_bluetooth.c:446 [bluetooth]bt_sock_poll =_ "sock %p, sk %p12"
      net/bluetooth/af_bluetooth.c:330 [bluetooth]bt_sock_stream_recvmsg =_ "sk %p size %zu12"
      net/bluetooth/af_bluetooth.c:251 [bluetooth]bt_sock_recvmsg =_ "sock %p sk %p len %zu12"
      net/bluetooth/af_bluetooth.c:203 [bluetooth]bt_accept_dequeue =_ "sk %p, already unlinked12"
      net/bluetooth/af_bluetooth.c:189 [bluetooth]bt_accept_dequeue =_ "parent %p12"
      net/bluetooth/af_bluetooth.c:175 [bluetooth]bt_accept_unlink =_ "sk %p state %d12"
      net/bluetooth/af_bluetooth.c:159 [bluetooth]bt_accept_enqueue =_ "parent %p, sk %p12"
      net/bluetooth/hci_core.c:4263 [bluetooth]hci_cmd_work =_ "%s cmd_cnt %d cmd queued %d12"
      net/bluetooth/hci_core.c:4246 [bluetooth]hci_rx_work =_ "%s SCO data packet12"
      net/bluetooth/hci_core.c:4241 [bluetooth]hci_rx_work =_ "%s ACL data packet12"
      net/bluetooth/hci_core.c:4236 [bluetooth]hci_rx_work =_ "%s Event packet12"
      net/bluetooth/hci_core.c:4207 [bluetooth]hci_rx_work =_ "%s12"
      net/bluetooth/hci_core.c:4147 [bluetooth]hci_req_cmd_complete =_ "opcode 0x%04x status 0x%02x12"
      net/bluetooth/hci_core.c:4087 [bluetooth]hci_scodata_packet =_ "%s len %d handle 0x%4.4x12"
      net/bluetooth/hci_core.c:4054 [bluetooth]hci_acldata_packet =_ "%s len %d handle 0x%4.4x flags 0x%4.4x12"
      net/bluetooth/hci_core.c:4023 [bluetooth]hci_tx_work =_ "%s acl %d sco %d le %d12"
      net/bluetooth/hci_core.c:3991 [bluetooth]hci_sched_le =_ "chan %p skb %p len %d priority %u12"
      net/bluetooth/hci_core.c:3972 [bluetooth]hci_sched_le =_ "%s12"
      net/bluetooth/hci_core.c:3956 [bluetooth]hci_sched_esco =_ "skb %p len %d12"
      net/bluetooth/hci_core.c:3948 [bluetooth]hci_sched_esco =_ "%s12"
      net/bluetooth/hci_core.c:3932 [bluetooth]hci_sched_sco =_ "skb %p len %d12"





      kernel debug




      kernel debug






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      edited Apr 19 at 20:16









      Zanna

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      asked Apr 2 at 23:31









      Masoud

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