Add Timeout config param for bisections.
Specify timeout in syz-ci as 8h based on the following data.
Out of 1049 cause bisections that we have now:
- 891 finished under 6h (84.9%)
- 957 finished under 8h (91.2%)
- 980 finished under 10h (93.4%)
- 989 finished under 12h (94.3%)
- 1011 finished under 18h (96.3%)
- 1025 finished under 24h (97.7%)
There is also a significant increase in errors/inconclusive bisections after ~8h.
Out of 4075 fix bisections:
- 4015 finished under 6h (98.5%)
- 4020 finished under 8h (98.7%)
- 4026 finished under 10h (98.8%)
- 4032 finished under 12h (98.9%)
Significant increase in errors starts after ~12h.
The current timeout also take into account that bisection jobs
compete with patch testing jobs (it's bad delaying patch testing).
When/if bisection jobs don't compete with patch testing,
it makes sense to increase this to 12-24h.
Fixes#1923
Currently we sandbox all repos b/c we assumed
that all builds are also sandboxes. But this causes
havoc for bisection/patch testing b/c syzkaller build
is not actually sandboxed anywhere. Build creates
root-owned files and then git can't do anything with them
but don't report errors either:
$ git checkout 8eda0b95 && echo OK
error: unable to unlink old 'sys/linux/gen/386.go': Permission denied
error: unable to unlink old 'sys/linux/gen/ppc64le.go': Permission denied
...
HEAD is now at 8eda0b957e
OK
We trust own sources and we don't test syzkaller patches,
so don't sandbox syzkaller repos.
Add descriptions related to IPv4/v6 tunnels
(include/uapi/linux/if_tunnel.h).
Descriptions of netlink actions are not included in this commit.
Update #533.
We used to show number of fixed bugs at the top of the main page.
However, now with the button nagivation, "fixed" is shown on every page.
Fetching and processing all bugs on every page would be unwise.
Cache these stats in memcache. It will be useful to show more stats in future.
Currently we have only "fixed" link at the top of the page.
"invalid" is missing and this is not scalable.
Add natigation buttons (tabs) for main pages.
Use the OpenSBI "jump" firmware with the QEMU -bios parameter to boot
linux/riscv64. This will allow to boot the kernel directly without
having to recompile OpenSBI every time the kernel is recompiled.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Mention the possibility to use `-bios default` to use OpenSBI provided
with QEMU. However, this might not work on all distributions yet, so
make it optional.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Right after committing the on_each_cpu change,
another report come in where smp_call_function
is not called from on_each_cpu. And there are
actually more such callers in code, and also
as existing tests show. smp_call_function seems
to be the better root cause indication.
config-bisect.pl uses bash-isms and can't run on non-linux.
It also silently ignores all errors which made failures
very obscure -- the script happily succeeds in presence
of any errors. So the test failed later reading .config.
Use "set -eu" to not fail silently.
Also trace all config-bisect.pl invocations and output.
good/bad decisions are important and we always log them
in the normal bisection.
The test requires new git binary.
It's not necessary installed everywhere.
Skip the test if git binary does not support bisection.
Also reoder functions from more important to less important.
Mark the test as parallel.
Move individual tests into subtests.
Split trace per subtest.
It also hash high branching factor and a bug is more likely in the callback.
For the added test we used to say:
INFO: rcu detected stall in __sys_sendmsg
now we say more useful:
INFO: rcu detected stall in tc_modify_qdisc
