On Thu, Dec 5, 2019 at 5:57 AM David Howells [off-list ref] wrote:

David Sterba [off-list ref] wrote:

quoted

[<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