Re: FreeBSD Errata Notice FreeBSD-EN-15:06.file

2015-06-09 Thread Nick Frampton
Pardon my ignorance, but why was this posted as an EN instead of a SA if it corrects security vulnerabilities? -Nick On 10/06/15 08:39, FreeBSD Errata Notices wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 =

Re: Suspected libkvm infinite loop

2015-03-11 Thread Nick Frampton
On 12/03/15 00:38, John Baldwin wrote: It sounds like this issue might be the one fixed in r272566: if the KERN_PROC_ALL sysctl is read with an insufficiently large buffer, an sbuf error return value could bubble up and be treated as ERESTART, resulting in a loop. This can be confirmed

Re: Suspected libkvm infinite loop

2015-03-10 Thread Nick Frampton
On 11/03/15 07:59, Mark Johnston wrote: On Tue, Mar 10, 2015 at 02:10:09PM -0400, John Baldwin wrote: Often loops using libkvm are due to programs using libkvm are trying to read kernel data structures while they are changing. However, if you use sysctls to fetch this data instead, you should

Suspected libkvm infinite loop

2015-03-09 Thread Nick Frampton
Hi, For the past several months, we have had an intermittent problem where a process calling kvm_openfiles(3) or kvm_getprocs(3) (not sure which) gets stuck in an infinite loop and goes to 100% cpu. We have just observed fstat -m do the same thing and suspect it may be the same problem. Our