[Aptitude-devel] Bug#832710: aptitude: segfault in arm* qemu environments

[Gianfranco Costamagna]

Source: aptitude
Version: 0.8.2-1

Severity: normal

Hi, since some months, the default pbuilder installation (the default uses aptitude resolver) crashes
when under a qemu environment.

steps to reproduce
pbuilder-dist sid arm64 create
pbuilder-dist sid arm64 update

crash.

I tried to gdb but I didn't have to much luck in having a backtrace

gdb aptitude
qemu: Unsupported syscall: 278
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Reading symbols from aptitude...Reading symbols from /usr/lib/debug/.build-id/ea/60762dcca33c7f2150747763c0c39174939862.debug...r update
done.
done.
(gdb) r update
Starting program: /usr/bin/aptitude update
qemu: Unsupported syscall: 117
During startup program terminated with signal SIGSEGV, Segmentation fault.
(gdb) 
(gdb) 
(gdb) bt
No stack.
(gdb) bt all
No stack.
(gdb) quit

also strace seems to have some issues here

qemu: Unsupported syscall: 117
qemu: Unsupported syscall: 117
/usr/bin/strace: ptrace(PTRACE_TRACEME, ...): Function not implemented

+++ exited with 1 +++

you can find some bits in the discussion below
https://lists.debian.org/debian-mentors/2016/07/msg00644.html

probably this is a bug in qemu itself, but I thought it was better to report it here,
to make you aware of the issue.
Switching to apt resolver or another one "fixes" the issue.

as usual, feel free to reassign or give me some pointers to debug further the issue

thanks a lot,

Gianfranco