RE: Kprobes support for IA64

["Lynch, Rusty" <rusty dot lynch at intel dot com>]

>-----Original Message-----
>From: systemtap-owner@sources.redhat.com [mailto:systemtap-
>owner@sources.redhat.com] On Behalf Of Ananth N Mavinakayanahalli
>Sent: Monday, May 23, 2005 11:57 AM
>To: Keshavamurthy, Anil S
>Cc: SystemTAP
>Subject: Re: Kprobes support for IA64
>
>Keshavamurthy, Anil S wrote:
>
>Hi Anil,
>
>> Hi All,
>> 	I have posted the Kprobes support for IA64 to Andrew for
>> inclusion into
>> his mm tree and cc'ing systemtap, linux-ia64 and linux-kernel mailing
>> list. For some reason it is not showing up on systemtap mailing list.
So
>> though of letting people on this mailing list know about the same.
>>
>> Here is the link to the patches which has been posted.
>> http://marc.theaimsgroup.com/?l=linux-kernel&m=111686392713936&w=2
>> http://marc.theaimsgroup.com/?l=linux-kernel&m=111686371307789&w=2
>> http://marc.theaimsgroup.com/?l=linux-kernel&m=111686420206738&w=2
>> http://marc.theaimsgroup.com/?l=linux-kernel&m=111686392701700&w=2
>> http://marc.theaimsgroup.com/?l=linux-kernel&m=111686420210427&w=2
>>
>> Any feedback/comments/testing are welcome.
>
>Great job! I noticed one minor thing with the port though - you don't
>seem to have defined JPROBE_ENTRY for ia64.

Ah.... I never noticed that macro before. Thanks.

>
>I worked with Prarit Bhargava (SGI) today to show the usage of
>kprobes/jprobes on ia64. Everything worked fine, except for a
consistent:
>
>-bash: child setpgid (xxx to xxx): No such process
>                       ^^^    ^^^ pids of bash
>message during rmmod of a jprobe module. Not sure why this message
comes
>up though. The machine we were testing on was a 16-way Altix box I
think.
>
>Ananth

I haven't seen this message before.  Do you have a simple testcase that
exposes this?

    --rusty