| 2012-02-17 07:40:31 |
Chris Hoge |
description |
Some Python installations, in particular for RHEL 6.1 Python 2.6, that are not 64 bit clean "glance add" will fail. For example, where testimage.img is larger than 2GB
glance --debug add name="testimage" disk_format=raw is_public=true < testimage.img
python: Objects/fileobject.c:2117: readahead_get_line_skip: Assertion `skip+len < 2147483647' failed.
The underlying problem is a INT_MAX macro in the fileobject.c method 'readahead_get_line_skip' uses a 32 bit value instead of a 64 bit value. The Python file iterator eventually calls down to this method, which causes a crash for large file sizes.
A workaround for RHEL users is to comment out the "elif self._iterable(body):" section for the image_iterator method in glance/common/client.py and fall back to the ImageBodyIterator.
While not directly a bug with Glance, it does impact a subset of users not running Ubuntu systems. |
Some Python installations, in particular for RHEL 6.2 Python 2.6, are not 64 bit clean, and "glance add" will fail. For example, where testimage.img is larger than 2GB
glance --debug add name="testimage" disk_format=raw is_public=true < testimage.img
python: Objects/fileobject.c:2117: readahead_get_line_skip: Assertion `skip+len < 2147483647' failed.
The underlying problem is an INT_MAX macro in the fileobject.c method 'readahead_get_line_skip' uses a 32 bit value instead of a 64 bit value. The Python file iterator eventually calls down to this method, which causes a crash for large file sizes.
A workaround for RHEL users is to comment out the "elif self._iterable(body):" section for the image_iterator method in glance/common/client.py and fall back to the ImageBodyIterator.
While not directly a bug with Glance, it does impact a subset of users not running Ubuntu systems. |
|
