>On Jan 22, Richard B. Johnson wrote:
>> On Fri, 22 Jan 1999, Steven N. Hirsch wrote:
>>
>> > All,
>> >
>> > Even with Stephen Tweedie's patch applied, I'm seeing everything as 'end'
>> > in WCHAN. This is on a RH 5.2 install (props-1.2.9).
>> >
>> > Steve
>> >
>> I just installed Red Hat on a PC at home. I had this same problem.
>> The version of procps that RH uses, apparently doesn't use the
>> /etc/psdatabase any more (which you update with `psupdate`). Instead
>> it expects to see /boot/System.map and read its symbols directly.
>> Therefore, you must copy ../linux/System.map to /boot.
>doesn't matter! even with correct System.map file I get only empty WCHAN fields
>with 2.2.0-final too:
> # ps lp 1
> FLAGS UID PID PPID PRI NI SIZE RSS WCHAN STA TTY TIME COMMAND
> 100 0 1 0 0 0 824 64 S ? 0:04 init [2]
> ^^^^^^^
>with strace clearly showing that it's using the correct map:
> open("/boot/System.map-2.2.0-final", O_RDONLY) = 3
Yes, its true. Look for my letter about this. In 2.2.0-9 in file /proc/pid#/stat
field which indicate WCHAN _always_ zero. For now I have not enough time to look kernel
sources about this.
SY, Stanislav Voronyi.
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