Red Hat Bugzilla – Bug 87601
Reiser hammers CPU >2gig file, also causes loss of free space
Last modified: 2007-11-30 17:06:52 EST
Description of problem:
Bug is really reference to the 7.2 bug #57714 which is marked closed (fix was put into 2.4.18 kernels) but A.S. does not have the fix
even with the latest kernel.
Creating a large file >2gig the CPU goes to full use, the process creating the file can't be killed. At 2gig the file stays the same size
(according to ls), but doing multiple 'df' commands on the filesystem shows that space is still being used by the process. To repair,
only a 'reboot -f -n' will bounce the box (sync hangs). I can't completely verify it, but I believe the space gets allocated but can't be
deallocated. As shown below I've got >5gig less space available than I can account for.
[root@tweek root]# df -k /files
Filesystem 1k-blocks Used Available Use% Mounted o
/dev/hdd1 120057164 81171436 38885728 68% /files
[root@tweek root]# du -ks /files/
I tried running reiserfsck to get back the space, but to no avail the space is still appears to be unavailable.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Create a single big file: dd if=/dev/zero of=test bs=1M count=3000
2. At 2gig CPU gets hammered
3. dd process can't be killed
Both CPU's got 100% use, free space in the reiser filesystem is lost:
File should be created without killing CPU and without losing free space
I believe it is related to the warning of off Reiser's web page at http://www.namesys.com/download.html but I can't say for sure.
as far as I know, reiserfs is very very unsupported in AS2.1
Because reiser is not supported in AS2.1, closing this bug.