Hello Thomas, On Wed, Feb 18, 2026 at 06:28:41PM +0100, Thomas Bätzler wrote: > I'm using "ip netns exec" in ExecStart to get the program to run in my > namespaces.
I tried a similar setup, debian 13/systemd 257.9/haproxy 3.0.11 and haproxy didn't crash for me. # ip netns pids test 1211 1213 # cat /proc/1211/comm haproxy > Feb 09 21:37:09 test kernel: haproxy[5433]: segfault at 28f8 ip > 00007f6763573d33 sp 00007f6762bf25e0 error 4 in > libc.so.6[96d33,7f6763505000+164000] likely on CPU 9 (core 12, socket 0) > Feb 09 21:37:09 test kernel: Code: 1f 84 00 00 00 00 00 48 89 f2 31 f6 e9 36 > f6 ff ff 66 0f 1f 44 00 00 41 56 41 55 41 54 55 53 48 89 fb 64 8b 2c 25 d0 > 02 00 00 <8b> 47 10 25 7f 01 00 00 83 f8 43 0f 87 ac 00 00 00 48 8d 1> This low mem address 0x28f8 could be a NULL ptr dereference, a read of an unmapped page. > I'd appreciate any pointers! Can you enable core dumps saving and get a backtrace for the segfaulting thread?
