On Thursday, 15. January 2015 06:43:29 Eric Dumazet wrote: > > -#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768) > > +#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(4096) > > > > #define NETDEV_FRAG_PAGE_MAX_SIZE (PAGE_SIZE << > > NETDEV_FRAG_PAGE_MAX_ORDER) #define NETDEV_PAGECNT_MAX_BIAS > > NETDEV_FRAG_PAGE_MAX_SIZE> > > When I try a page size of 8192, it starts failing again. I'll now run > > a stress test with 4096 to see if the problem is really gone > > or just happens more rarely. > > Sure, you basically reverted my patch. > > You are not the first to report a problem caused by this patch. > > This patch is known to have uncovered some driver bugs. > > We are not going to revert it. We are going to fix the real bugs. > > Thanks
A colleague mentioned to me he saw the "Hardware Unit Hang" message every few days even running on kernel 3.4 (without your patch). Basically I'm testing now if that's still the case with 3.19-rc4+ or not. I'm all for fixing the root cause. I'm just interested if the e1000e hang can even be triggered when using a max frag page size of 4096. So far it transferred 751.6 GiB without a hiccup. Cheers, Thomas ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. http://p.sf.net/sfu/gigenet _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
