Can you see if this commit fixes it for you? https://gitlab.com/wireshark/wireshark/-/commit/0146fe4eb622a6a54d6ccb0e69488b594ec1fe50
John Thacker On Wed, Jul 10, 2024, 6:17 PM Ben Greear <gree...@candelatech.com> wrote: > Hello, > > We saw a lockup on a system with lots of network interfaces. > I haven't looked at the code, but it smells like a somewhat common pipe > related lockup > where the child process is trying to write, but parent is not reading > because it is > waiting for child to complete, so child cannot finish writing and exit, > so...deadlock. > > Any ideas on this? Our build is a bit old, so we'll pull latest and see if > it is reproducible... > > [root@ct523c-2175 ~]# wireshark --version > Wireshark 4.3.0 (Git commit 2ae6c42ce290). > > wireshark: > > (gdb) bt > #0 0x00007f7ab3edccbf in wait4 () from /lib64/libc.so.6 > #1 0x00005636a4d31d66 in sync_pipe_wait_for_child.lto_priv () > #2 0x00005636a4d4ff06 in sync_interface_stats_open.constprop () > #3 0x00005636a4ab6334 in InterfaceFrame::scanLocalInterfaces(_GList*) () > #4 0x00007f7abd3b1385 in void doActivate<false>(QObject*, int, void**) () > from /lib64/libQt6Core.so.6 > #5 0x00005636a49caac6 in MainApplication::scanLocalInterfaces(_GList*) () > #6 0x00005636a4994c0a in main () > (gdb) > > dumpcap (what is being waited upon): > > (gdb) bt > #0 0x00007f7182301c37 in write () from /lib64/libc.so.6 > #1 0x00007f718228496d in _IO_file_write@@GLIBC_2.2.5 () from > /lib64/libc.so.6 > #2 0x00007f7182283d10 in new_do_write () from /lib64/libc.so.6 > #3 0x00007f71822859d9 in __GI__IO_do_write () from /lib64/libc.so.6 > #4 0x00007f7182283b48 in __GI__IO_file_sync () from /lib64/libc.so.6 > #5 0x00007f718227944c in fflush () from /lib64/libc.so.6 > #6 0x0000563c67f170a9 in print_statistics_loop () > #7 0x0000563c67f118e9 in main () > (gdb) > > Thanks, > Ben > > -- > Ben Greear <gree...@candelatech.com> > Candela Technologies Inc http://www.candelatech.com > > ___________________________________________________________________________ > Sent via: Wireshark-dev mailing list <wireshark-dev@wireshark.org> > Archives: https://www.wireshark.org/lists/wireshark-dev > Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-dev > mailto:wireshark-dev-requ...@wireshark.org > ?subject=unsubscribe >
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