Comments (5)
from clusterfuzz.
If I read the code correctly, the cron job only mutates FuzzerJob.multiplier
values, not FuzzerJob.weight
values. Can we simply manually set FuzzerJob.weight
instead?
from clusterfuzz.
Ah, I misread the issue. This is about engine fuzzers. There is indeed no way to manually set weights for libfuzzer and afl fuzz targets, since the weights are clobbered by a cron job. It currently works for centipede targets because there is no support in the cron job for other fuzzing engines.
from clusterfuzz.
It seems to me the most straightforward solution here would be to introduce the weight/multiplier distinction for fuzz targets as is done for fuzzers, and have the cron job adjusts multipliers instead of weights. It's pretty simple, and that way it would work just like fuzzer weights for consistency.
from clusterfuzz.
I don't have any input on the existing logic for assigning weights and multipliers. Generally speaking I have found it confusing in the past.
The core issue here (at least, for Android) are our host jobs are not running basically at all.
In a design discussion yesterday, it was decided to create a new pool of hosts dedicated specifically for running our jobs.
I just wanted to leave this note in case this decision affects the work items in this ticket.
from clusterfuzz.
Related Issues (20)
- Handle insufficient privileges in progression task
- Transition from Container Registry HOT 1
- Fix fuzztest detection HOT 1
- Get rid of "Failed to parse logcat line: E/" HOT 1
- Handle target deletion in split builds
- corpus_pruning task needs privileges HOT 3
- Ensure heartbeat doesnt run on batch instances HOT 1
- Investigate windows instances that aren't logging
- Fix Android ability to launch Cuttlefish Images
- Automatic closure date is in the past HOT 3
- Allow custom builds in nonprivileged execution HOT 1
- Ensure that impact tasks aren't run on non-chrome projects
- Fix issues with zero size thread pools. HOT 1
- clusterfuzz service crashing on fuzzbots HOT 2
- Investigate queue backlog HOT 8
- Rate limit task retries.
- Get rid of unwanted lines stat
- Fix uploading of custom builds.
- Unable to access clusterfuzz
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from clusterfuzz.