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Re: stpd issues
- From: fche at redhat dot com (Frank Ch. Eigler)
- To: Hien Nguyen <hien at us dot ibm dot com>
- Cc: SystemTAP <systemtap at sources dot redhat dot com>
- Date: 20 Aug 2005 07:23:41 -0400
- Subject: Re: stpd issues
- References: <43065321.1060902@us.ibm.com>
hiet wrote:
> [...] I observed some issues with the new transport with the
> attached module (insert jprobes and kretprobes on all system
> calls). [...]
I wonder what happens if one has a kretprobe on an cunning function
(sys_delete_module), which indirectly may end up trying to remove the
probe (unregister_kretprobe) during its execution (systemtap probe
cleanup). In other words, how does the kretprobe logic handle the
removal function, when the entry half of a return probe has been hit,
and the return part is pending?
- FChE