pypy seg fault on larger byte arrays
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 35/100
Research direction
Start by running the s.py reproduction from the issue with five and ten UUID byte arrays under PyPy 5.0.1, and compare the compression and decompression assertions. Then trace the python-snappy binding involved in those calls and use the pykafka issue for context. Done means larger byte arrays complete without a segmentation fault and the assertions still pass.
Written by the indexing model from the issue text.
Description
This came up in a pykafka compression issue.
https://github.com/Parsely/pykafka/issues/508
So byte arrays above a certain size causes a seg fault.
(pypy) ➜ cat s.py
from uuid import uuid4
import snappy
payload = b''.join([uuid4().bytes for i in range(10)])
c = snappy.compress(payload)
assert snappy.decompress(c) == payload
(pypy) ➜ python s.py
[1] 4587 segmentation fault (core dumped) python s.py
(pypy) ➜ python
Python 2.7.10 (bbd45126bc69, Mar 18 2016, 21:35:08)
[PyPy 5.0.1 with GCC 4.8.4] on linux2
while
from uuid import uuid4
import snappy
payload = b''.join([uuid4().bytes for i in range(5)])
c = snappy.compress(payload)
assert snappy.decompress(c) == payload
passes
- Dominant language
- Python
- Stars
- 490
- Forks
- 104
- PR merge metrics
- No merged PRs in 30d
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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