Messages in this thread |  | | Date | Thu, 12 Apr 2012 01:09:11 +0200 | | From | Richard Weinberger <> | | Subject | Re: swapoff() runs forever |
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Am 09.04.2012 20:40, schrieb Hugh Dickins: > I've not seen any such issue in recent months (or years), but > I've not been using UML either. The most likely cause that springs > to mind would be corruption of the vmalloc'ed swap map: that would > be very likely to cause such a hang.
It does not look like a swap map corruption. If I restart most user space processes swapoff() terminates fine. Maybe it is a refcounting problem?
> You say "recent Linux kernels": I wonder what "recent" means. > Is this something you can reproduce quickly and reliably enough > to do a bisection upon? >
I can reproduce the issue on any UML kernel. The oldest I've tested was 2.6.20. Therefore, bug was not introduced by me. B-)
Thanks, //richard
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