11315 2017-04-10 10:11:29 +0000 bitbake: ZeroDivisionError in bb.cache 2017-04-13 14:40:36 +0000 1 1 7 Build System, Metadata & Runtime BitBake bitbake 2.3 x86 Multiple RESOLVED FIXED Undecided normal --- 1 markus.lehtonen markus.lehtonen markus.lehtonen poky.bs.watcher poky.watcher --- --- No (bug/feature does not impact docs) oldest_to_newest 72202 0 3693 markus.lehtonen 2017-04-10 10:11:29 +0000 Created attachment 3693 autobuilder log There was a failure in oeqa.selftest.recipetool.RecipetoolTests.test_recipetool_appendfile_postinstall that was caused by a division-by-zero error in bb.cache: File "/home/pokybuild/yocto-autobuilder/yocto-worker/nightly-oe-selftest/build/bitbake/lib/bb/cache.py", line 465, in Cache.load_cachefile(): current_progress = cachefile.tell() + previous_progress > current_percent = 100 * current_progress / cachesize if current_percent > previous_percent: ZeroDivisionError: division by zero Relevant part of the autobuilder log is attached. 72203 1 3694 markus.lehtonen 2017-04-10 10:17:19 +0000 Created attachment 3694 autobuilder log 72204 2 markus.lehtonen 2017-04-10 10:56:11 +0000 I was not able to reproduce the issue. But, I think it must be rare race in cache file access, experienced under heave io load: the cache file(s) is accessed asynchronously and another thread writes out the file just after we checked it size so we get size if zero but are still able to read data from it just a little bit later. Patch sent for review: https://patchwork.openembedded.org/patch/138986/ 72464 3 markus.lehtonen 2017-04-13 14:40:36 +0000 Fixed in http://git.openembedded.org/bitbake/commit/?id=227c5acd4b40154bc61202e7bb67a13818a7d727 3693 2017-04-10 10:11:29 +0000 2017-04-10 10:17:19 +0000 autobuilder log autobuilder.log application/octet-stream 5592 markus.lehtonen MjAxNy0wNC0wOSAwOTozNDo0NSAtICAgdGVzdF92YWxpZCAob2VxYS5zZWxmdGVzdC5vZWxpYi51 dGlscy5UZXN0VHJpbVZlcnNpb24pIC4uLiBPSyAoMC4wMDBzKQoyMDE3LTA0LTA5IDA5OjM0OjQ1 IC0gICB0ZXN0X3ZlcnNpb25fZXhjZXB0aW9uIChvZXFhLnNlbGZ0ZXN0Lm9lbGliLnV0aWxzLlRl c3RUcmltVmVyc2lvbikgLi4uIE9LICgwLjAwMHMpCjIwMTctMDQtMDkgMDk6MzQ6NDUgLSAgIHRl c3RfZWZpX3N5c3RlbWRib290X2ltYWdlc19jYW5fYmVfYnVpbHQgKG9lcWEuc2VsZnRlc3Quc3lz dGVtZF9ib290LlN5c3RlbWRib290KSAuLi4gT0sgKDg0LjM2MXMpCgo9PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09CkZB SUwgWzEyLjg5NXNdOiB0ZXN0X3JlY2lwZXRvb2xfYXBwZW5kZmlsZV9wb3N0aW5zdGFsbCAob2Vx 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