On Thu, May 02, 2019 at 01:47:40PM -0600, Shuah Khan wrote:
Add a sleep between detach and check for exportable devices to avoid the following segfault from libc-2.27.so
[ 6268.136108] usbip[5565]: segfault at 0 ip 00007f2a947bddfd sp 00007ffd1a8705e8 error 4 in libc-2.27.so[7f2a94703000+1e7000]
Signed-off-by: Shuah Khan skhan@linuxfoundation.org
tools/testing/selftests/drivers/usb/usbip/usbip_test.sh | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh b/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh index 128f0ab24307..beacf24a8df7 100755 --- a/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh +++ b/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh @@ -171,10 +171,14 @@ echo "Detach invalid port tests - expect invalid port error message"; src/usbip detach -p 100; echo "==============================================================" +# let detach complete. Avoid segfaults from libc-2.27.so +sleep 3;
That feels very "arbitrary", why do we "know" it will take at most 3 seconds? I guess there's not much else we can do here except maybe somehow watch sysfs until the device is really gone?
thanks,
greg k-h