On Fri, 2020-07-31 at 11:52 +0100, Richard W.M. Jones wrote:
> Here's another one:
> 
>   $ rpm -qf /usr/bin/guestfish /lib64/libreadline.so.8
>   libguestfs-tools-c-1.43.1-2.fc33.x86_64
>   readline-8.0-5.fc33.x86_64
>   $ guestfish --version
>   Segmentation fault (core dumped)
> 
>   (gdb) bt
>   #0  0x0000000000000000 in  ()
>   #1  0x00007f3212b72dad in history_filename
>       (filename=0x5592dd41bfa0 "/home/rjones/.guestfish") at ../histfile.c:152
>   #2  0x00007f3212b75e2d in read_history_range
>       (filename=<optimized out>, from=0, to=-1) at ../histfile.c:280
>   #3  0x00005592dd33e646 in main ()
> 
> It also caused a build failure of another package in Koji
> (search the logs for "ext2.img] Segmentation fault (core dumped)"):
> 
>   https://koji.fedoraproject.org/koji/taskinfo?taskID=48245041
> 
> I suspect the problem isn't in readline but is in the main package,
> mainly because I tried an older readline and that failed in the same
> way.
> 
> I'm going to disable LTO in libguestfs and rebuild it.
This is almost certainly the linker bug. I analyzed last week.

nm --dynamic guestfish

Would be enough for me to say conclusively.


Jeff
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