On 2/21/20 7:51 AM, Jens Axboe wrote: > On 2/21/20 6:17 AM, Glauber Costa wrote: >> Hi >> >> Today I found a crash when adding code for the poll ring to my implementation. >> Kernel is 2b58a38ef46e91edd68eec58bdb817c42474cad6 >> >> Here's how to reproduce: >> >> code at >> https://github.com/glommer/seastar.git branch poll-ring >> >> 1. same as previous steps to configure seastar, but compile with: >> ninja -C build/release apps/io_tester/io_tester >> >> 2. Download the yaml file attached >> >> 3. Run with: >> >> ./build/release/apps/io_tester/io_tester --conf ~/test.yaml --duration >> 15 --directory /var/disk1 --reactor-backend=uring --smp 1 >> >> (directory must be on xfs because we do c++ but we're not savages) > > This is due to killing the dummy callback function on the task work. > I'll play with this a bit and see how we can fix it. I re-did the code to use task_works instead, can you try the current one? Same branch, sha is currently 9ba3cd1b8923. -- Jens Axboe
