I am testing the kernel 3.2.1 (32-bit) XFS filesystem on a 1 TB LVM logical
volume. The volume currently has 3653816 files, 3655726 used inodes and 782G
free space. When the volume is mounted, quotacheck starts up and after about
5 minutes the oom-killer is triggered and starts killing processes. From the
message log, it looks like the system is running out of Normal memory. After
a while I see the following messages after which I power cycle the system:
XFS: possible memory allocation deadlock in kmem_zone_alloc (mode: 0x2d0)
XFS: possible memory allocation deadlock in xfs_buf_allocate_memory (mode:
The kernel is configured for 2G/2G memory split. I tried setting
vm.overcommit_memory to 2 and vm.overcommit_ratio first to 80 and then 50
and that did not help.
The server has an Intel Quad core Xeon CPU X3450 @ 2.67GHz with 4 GB RAM.
The swap partition is 8GB in size.
Is this a known issue and if so, is a patch available? Is there a kernel
configuration parameter that can be adjusted to fix this?
Do let me know if you need additional information about the test setup or
Thanks for your help.
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