Re: 2.4.29, e100 and a WOL packet causes keventd going mad

From: Michael Gernoth (simigern_at_stud.uni-erlangen.de)
Date: 01/30/05

  • Next message: James Morris: "Re: [PATCH 04/04] Add LRW" 
    Date:	Sun, 30 Jan 2005 13:15:49 +0100
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>

    On Sat, Jan 29, 2005 at 04:18:21PM -0200, Marcelo Tosatti wrote:
    > Probably a task event is rescheduling itself repeatedly? e100 does not seem
    > to schedule_task() events directly, so I wonder what is going on.
    >
    > Can you boot a machine with profile=2, then send the WOL packet causing
    > keventd to go mad and run:
    >
    > readprofile | sort -nr +2 | head -20

    faui07c:~# readprofile | sort -nr +2 | head -20
      2352 acpi_ns_get_next_valid_node 130.6667
      9577 acpi_os_read_port 121.2278
      4431 acpi_os_signal_semaphore 100.7045
      4639 default_idle 57.9875
      4363 acpi_ns_get_next_node 57.4079
      5957 acpi_ns_delete_namespace_by_owner 37.7025
      2307 acpi_os_write_port 34.9545
      4048 acpi_os_wait_semaphore 18.8279
      1924 acpi_ut_acquire_mutex 16.8772
       492 __rdtsc_delay 15.3750
       526 acpi_os_get_thread_id 15.0286
      1421 acpi_ut_release_mutex 13.1574
       339 acpi_ns_get_parent_node 11.6897
      1506 acpi_ut_release_to_cache 10.9130
      1600 acpi_ut_acquire_from_cache 9.8160
       909 acpi_ds_method_data_init 8.4953
       327 acpi_ut_valid_acpi_name 6.9574
       311 acpi_ns_search_node 4.7121
       268 acpi_ps_get_opcode_info 4.0606
        31 acpi_ut_delete_generic_state_cache 3.4444

    The machine has an uptime of 10 minutes at that point, and the second
    WOL packet was sent directly after the machine came up and I was able
    to ssh into it.

    Regards,
      Michael
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  • Next message: James Morris: "Re: [PATCH 04/04] Add LRW"