Re: Small System Paging Problem - OOM-killer goes nuts

From: Oliver Neukum
Date: Tue Nov 27 2007 - 04:29:01 EST

Am Dienstag 27 November 2007 schrieb ming lei:
> It seems  oom happenes when VM(page frame reclaim) try to reclaim much
> more memory by writing back dirty pages, but  there is not enough ram
> for usb disk  related driver to finish the writeback operation. (usb
> disk related driver: scsi_mod, usb mass storage, usbcore and uhci or
> ehci )

As far as I can tell, the problem arises because usb-storage's kernel
thread does not run with PF_MEMALLOC and cannot dip into the reserves.


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