NSS appears to be consuming memory

  • 7006542
  • 30-Jul-2010
  • 30-Apr-2012

Environment

Novell Open Enterprise Server 2 (OES 2) Linux Support Pack 1 (x86_64)
SUSE Linux Enterprise Server 10 Service Pack 2 (x86_64)
Novell Storage Services (NSS)

Situation

Symptoms:

- Memory from within the 4k slabs and from within the 8k slabs appears to be consuming memory without releasing it
- Third-party monitoring tools report available memory to the kernel (cache + free) is consumed to the point where the kernel does not have enough available memory, causing a kernel panic.

Resolution

Fixed in novell-nss-4.11.2901-0.2 or newer
Fixed in nss-kmp-smp-4.11.2901 or newer

Additional Information

A potential leak was found in the communication channel used by NSS between user-space and kernel space. Random sizes of allocated memory can get leaked in certain code paths (size varies based on the response from user space).

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