On 2/28/23 21:12, Tomohiro Misono (Fujitsu) wrote: > <snip> >> Testing >> ======= >> >> - I have run all of the livepatch selftests successfully. I have written a >> couple of extra selftests myself which I will be posting separately > Hi, > > What test configuration/environment you are using for test? > When I tried kselftest with fedora based config on VM, I got errors > because livepatch transition won't finish until signal is sent > (i.e. it takes 15s for every transition). > Sorry for not responding earlier. I was out sick. I tested on a bare metal system (thunderx) running Ubuntu. I will try to reproduce the error you are seeing on a VM running fedora. Madhavan > [excerpt from test result] > ``` > $ sudo ./test-livepatch.sh > TEST: basic function patching ... not ok > > --- expected > +++ result > @@ -2,11 +2,13 @@ > livepatch: enabling patch 'test_klp_livepatch' > livepatch: 'test_klp_livepatch': initializing patching transition > livepatch: 'test_klp_livepatch': starting patching transition > +livepatch: signaling remaining tasks > livepatch: 'test_klp_livepatch': completing patching transition > ``` > > Thanks, > Tomohiro > >> >> - I have a test driver to induce a NULL pointer exception to make sure >> that unwinding through exception handlers is reliable. >> >> - I use the test driver to create a timer to make sure that unwinding through >> the timer IRQ is reliable. >> >> - I call the unwinder from different places during boot to make sure that >> the unwinding in each of those cases is reliable. >>
