From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Trippelsdorf Subject: ATL1E 0000:02:00.0: swiotlb buffer is full (sz: 529461 bytes) Date: Sat, 12 Sep 2015 08:51:55 +0200 Message-ID: <20150912065155.GA421@x4> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org To: linux-kernel@vger.kernel.org Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org With the current Linus git tree I get an occasional swiotlb allocation error during network setup at boot-time: ATL1E 0000:02:00.0: swiotlb buffer is full (sz: 529461 bytes) swiotlb: coherent allocation failed for device 0000:02:00.0 size=529461 CPU: 0 PID: 200 Comm: ifconfig Not tainted 4.2.0-11400-gdfb22fc5c0eb-dirty #113 Hardware name: System manufacturer System Product Name/M4A78T-E, BIOS 3503 04/13/2011 00000000ffffffff ffffffff812b8d33 ffffffffffffffff ffffffff812da574 ffffffff00000008 ffff880216827000 ffff880216827740 ffff880216af0000 0000000000081435 ffffffff81c163c0 ffff880216b1b800 ffffffff814e3b1d Call Trace: [] ? dump_stack+0x40/0x6d [] ? swiotlb_alloc_coherent+0x134/0x160 [] ? atl1e_open+0xfd/0x460 [] ? __dev_open+0x82/0x100 [] ? __dev_change_flags+0x91/0x160 [] ? dev_change_flags+0x1e/0x60 [] ? dev_get_by_name_rcu+0x54/0x80 [] ? devinet_ioctl+0x5d6/0x6a0 [] ? sock_ioctl+0xed/0x1e0 [] ? do_vfs_ioctl+0x291/0x480 [] ? __do_page_fault+0x140/0x380 [] ? SyS_ioctl+0x36/0x80 [] ? entry_SYSCALL_64_fastpath+0x12/0x66 ATL1E 0000:02:00.0 eth0: pci_alloc_consistent failed, size = D529461 This happens every forth or fifth boot, so the issue is not bisectable. -- Markus