Re: bin/44061: src/sys/gdbscripts/msgbuf doesn't work

[Sergey Svishchev <shattered%NetBSD.org@localhost>]

The following reply was made to PR bin/44061; it has been noted by GNATS.

From: Sergey Svishchev <shattered%NetBSD.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: bin/44061: src/sys/gdbscripts/msgbuf doesn't work
Date: Wed, 5 Oct 2016 23:38:18 +0300

 On Sun, Oct 02, 2016 at 07:05:00PM +0000, David Holland wrote:
 >The following reply was made to PR bin/44061; it has been noted by GNATS.
 >
 >From: David Holland <dholland-bugs%netbsd.org@localhost>
 >To: gnats-bugs%NetBSD.org@localhost
 >Cc:
 >Subject: Re: bin/44061: src/sys/gdbscripts/msgbuf doesn't work
 >Date: Sun, 2 Oct 2016 19:04:22 +0000
 >
 > On Sun, Nov 07, 2010 at 06:50:00PM +0000, shattered%NetBSD.org@localhost wrote:
 >  > Typical output from 'msgbuf' command defined by this script:
 >  >
 >  > msgbufp 0xcbbe1000: bufx 409 bufr 410 bufs 16368
 >  > Dumping 0xcbbe11a9 length 15959
 >  > Cannot access memory at address 0xcbbe5000
 >  >
 >  >
 >  > >How-To-Repeat:
 >  > Try to analyze a crash dump.
 >  > >Fix:
 >  > 'x/s $p' instead of 'printf "%s\n", $p' works, but is not pretty.
 >
 > ...why would this change whether $p is a valid pointer? Or is the
 > issue that the "string" isn't terminated so it chugs off the end, and
 > the behavior of x and printf in this case is different?
 
 IIRC, it was the latter -- unterminated string.  Haven't needed to run that script in a long while, though.
 
 -- 
 Sergey Svishchev