On Thu, Oct 09, 2025 at 06:59:20PM +0200, Kevin Wolf wrote: > Am 09.10.2025 um 17:46 hat Kevin Wolf geschrieben: > > Am 10.09.2025 um 19:56 hat Stefan Hajnoczi geschrieben: > > > There is no need for aio_context_use_g_source() now that epoll(7) and > > > io_uring(7) file descriptor monitoring works with the glib event loop. > > > AioContext doesn't need to be notified that GSource is being used. > > > > > > Signed-off-by: Stefan Hajnoczi <[email protected]> > > > Reviewed-by: Eric Blake <[email protected]> > > > > We should probably mention in the commit message that this causes the > > default fdmon on Linux to change from poll to io_uring. It's a small > > code change, but it makes QEMU use a completely different code path by > > default. > > Just to make sure, I ran 'make check' after this patch and it's failing > for me: > > 10/401 qemu:qtest+qtest-x86_64 / qtest-x86_64/ahci-test > TIMEOUT 150.02s killed by signal 15 SIGTERM > 133/401 qemu:unit / test-aio > TIMEOUT 30.01s killed by signal 15 SIGTERM > 137/401 qemu:unit / test-bdrv-drain > TIMEOUT 30.01s killed by signal 15 SIGTERM > 142/401 qemu:unit / test-block-iothread > TIMEOUT 30.01s killed by signal 15 SIGTERM > 192/401 qemu:doc+rust / rust-bql-rs-doctests > FAIL 0.84s exit status 101 > 311/401 qemu:block / io-qcow2-267 > ERROR 3.20s exit status 1 > 321/401 qemu:block / io-qcow2-copy-before-write > TIMEOUT 180.01s killed by signal 15 SIGTERM > > Some of them look unrelated, but I have confirmed that the three unit > tests still pass before this patch (and still hang after the complete > series).
I can't reproduce these failures, regardless of whether sysctl kernel.io_uring_disabled is 0 or 1. Can you launch the unit tests from your terminal and post the output? $ cd qemu $ build/tests/unit/test-aio $ build/tests/unit/test-bdrv-drain $ build/tests/unit/test-block-iothread That will show exactly which sub-test case is hanging. Other information that might help: your host kernel version and liburing version. Thank you! Stefan
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