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Date: Thu, 03 Apr 2014 06:50:26 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Ortwin Glück <odi@....ch> Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: 3.14 regression: huge latency in read/select on tun On Thu, 2014-04-03 at 06:19 -0700, Eric Dumazet wrote: > It seems TSO support is broken. If bug is in tun.c you have this list of changes you could bisect from : # git log --oneline v3.13..v3.14 drivers/net/tun.c 6671b2240c54 tun: remove bogus hardware vlan acceleration flags from vlan_features 99932d4fc03a netdevice: add queue selection fallback handler for ndo_select_queue 93e14b6d776e tun: add device name(iff) field to proc fdinfo entry fa35864e0bb7 tuntap: Fix for a race in accessing numqueues 0a379e21c503 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net fbe4d4565bad tun, rfs: fix the incorrect hash value 9bc8893937c8 tun: Add support for RFS on tun flows 143c90549494 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 3958afa1b272 net: Change skb_get_rxhash to skb_get_hash 42404c091510 Revert "tun: remove useless codes in tun_chr_aio_read() and tun_recvmsg()" 73713357ab58 tun: remove useless codes in tun_chr_aio_read() and tun_recvmsg() 34f9f437104b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net f96eb74c84eb tun: remove unused parameter in tun_do_read() 92d4ea6e412a tun: spelling fixes -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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