On Thu, Dec 5, 2019 at 5:57 AM David Howells <dhowells@xxxxxxxxxx> wrote: > > David Sterba <dsterba@xxxxxxx> wrote: > > > [<0>] pipe_write+0x1be/0x4b0 > > Can you get me a line number of that? Assuming you've built with -g, load > vmlinux into gdb and do "i li pipe_write+0x1be". If the kernel is built with debug info (which you need for the gdb command anyway), it's much better to just use ./scripts/decode_stacktrace.sh which gives all the information for the whole backtrace. It would be interesting to hear if somebody else is waiting on the read side too. Linus