Re: zsh crash in recent -current

[Martin Husemann <martin%duskware.de@localhost>]

On Tue, Mar 12, 2019 at 03:33:26PM +0000, Chavdar Ivanov wrote:
> Hi,
> 
> On amd64 -curent from yesterday (and a couple of days earlier) I
> started to get zsh crashes when tab-completing  (files, directories,
> packages), similar to
> .....
> Core was generated by `zsh'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x00007cf050211540 in permmatches () from
> /usr/pkg/lib/zsh/5.7/zsh/complete.so
> (gdb) bt
> #0  0x00007cf050211540 in permmatches () from
> /usr/pkg/lib/zsh/5.7/zsh/complete.so
> #1  0x00007cf050208b7c in ?? () from /usr/pkg/lib/zsh/5.7/zsh/complete.so
> #2  0x00000000004550d5 in getstrvalue ()
> #3  0x0000000000456085 in ?? ()
> #4  0x0000000000456f67 in getindex ()
> #5  0x0000000000457557 in fetchvalue ()
> #6  0x0000000000471da6 in ?? ()
> #7  0x0000000000476ab7 in prefork ()
> #8  0x0000000000476f42 in singsub ()
> #9  0x000000000042057c in evalcond ()
> #10 0x0000000000421f49 in ?? ()
> #11 0x000000000042bbb8 in ?? ()
> #12 0x0000000000429a88 in execlist ()
> ........ (several repeats of the above snippet).

This is likely the more strict jemalloc debug code in libc finding a memory
corruption issue. Try building zsh with debug info (and maybe also install
debug sets to get symbol information for libc).

Martin