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SubjectATL1E 0000:02:00.0: swiotlb buffer is full (sz: 529461 bytes)
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:
[<ffffffff812b8d33>] ? dump_stack+0x40/0x6d
[<ffffffff812da574>] ? swiotlb_alloc_coherent+0x134/0x160
[<ffffffff814e3b1d>] ? atl1e_open+0xfd/0x460
[<ffffffff815ddfa2>] ? __dev_open+0x82/0x100
[<ffffffff815de271>] ? __dev_change_flags+0x91/0x160
[<ffffffff815de35e>] ? dev_change_flags+0x1e/0x60
[<ffffffff815d9b14>] ? dev_get_by_name_rcu+0x54/0x80
[<ffffffff8164c256>] ? devinet_ioctl+0x5d6/0x6a0
[<ffffffff815c418d>] ? sock_ioctl+0xed/0x1e0
[<ffffffff811258b1>] ? do_vfs_ioctl+0x291/0x480
[<ffffffff81063940>] ? __do_page_fault+0x140/0x380
[<ffffffff81125ad6>] ? SyS_ioctl+0x36/0x80
[<ffffffff8106a297>] ? 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


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