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Re: kern/16284 running function in stoped gdb ...

The following reply was made to PR kern/16284; it has been noted by GNATS.

From: David Laight <>
Subject: Re: kern/16284 running function in stoped gdb ...
Date: Sun, 3 Jan 2010 21:07:54 +0000

 This still happens, errno is unchanged and the 'ret' value
 from select() seems to be undefined.
 ktrace shows a 'RET syscall 0' for the return from select
 errno is unchanged (unless set in the called function).
 gdb has to do some horrid stuff in order to call a process
 function - and even the 'success' result is lost.
 Sometimes, but not always, I also see almost 2 seconds delay before
 the output from the called function - not sure where that delay comes from.
 (A 2nd ^C gives a "Corrupt Obj_Entry pointer in GOT" error.)
 Anyone know the ptrace interface well enough to know what gdb is
 trying to do ?
 David Laight:

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