On Tue, Sep 8, 2015 at 10:14 PM, Konrad Rzeszutek Wilk
<konrad@kernel.org> wrote:
>
> (Removed Linus and Andrew from the To, added Corinna ..)

and resending again without HTML (sorry, thought I had HTML-emails
disabled by default)
>
> On Thu, Sep 3, 2015 at 1:35 AM, David Miller <davem@davemloft.net> wrote:
>>
>>
>> Another merge window, another set of networking changes.  I've heard
>> rumblings that the lightweight tunnels infrastructure has been voted
>> networking change of the year.  But what do I know?
>>
> .. snip..
>>
>> Corinna Vinschen (2):
>>       r8169: Add values missing in @get_stats64 from HW counters
>
>
> .. cases an regression when SWIOTLB is in use. (See full attached serial log), but
> the relevant snippet is:
>
> [   12.010065] BUG: sleeping function called from invalid context at /home/konrad/ssd/konrad/linux/mm/page_alloc.c:3186
> [   12.88021e49b938 ffffffff8174ff50 ffff8800c6637748
> [   12.051548] ttyS1: 4 input overrun(s)
> [   12.055485]  ffff8800c6637140 ffff88021e49b958 ffffffff810cf22e 0000000000000001^G^G^G^G^G^G^G^G
> [   12.064566]  0000000000000000 ffff88021e49b988^G^G^G^G^G^G^G^G ffffffff810cf2cd ffff88021e49b9b4
> [   12.073639] Call Trace:
> [   12.076156]  [<ffffffff8174ff50>] dump_stack+0x4f/0x68
> [   12.081444]  [<ffffffff810cf22e>] ___might_sleep+0xde/0x130
> [   12.087176]  [<ffffffff810cf2cd>] __might_sleep+0x4d/0x90
> [   12.092731]  [<ffffffff81191eef>] __alloc_pages_nodemask+0x26f/0xa20
> [   12.099271]  [<ffffffff811e8e5e>] ? create_object+0x21e/0x2c0
> [   12.105183]  [<ffffffff8174aeb3>] ? kmemleak_alloc+0x23/0x40
> [   12.111006]  [<ffffffff811dd0d4>] ? kmem_cache_alloc_trace+0x184/0x190
> [   12.117721]  [<ffffffff8174aeb3>] ? kmemleak_alloc+0x23/0x40
> [   12.123546]  [<ffffffff8105828d>] dma_generic_alloc_coherent+0x9d/0x140
> [   12.130354]  [<ffffffff81099cc0>] x86_swiotlb_alloc_coherent+0x30/0x60
> [   12.137072]  [<ffffffff810580cc>] dma_alloc_attrs+0x4c/0xb0
> [   12.142808]  [<ffffffffa00ab84e>] rtl8169_update_counters+0x7e/0x150 [r8169]
> [   12.150061]  [<ffffffffa00abafb>] rtl8169_get_stats64+0xcb/0x130 [r8169]
> [   12.156956]  [<ffffffff815f7298>] dev_get_stats+0x38/0x90
> [   12.162511]  [<ffffffff81617ff3>] dev_seq_printf_stats+0x23/0x100
> [   12.168786]  [<ffffffff811e8e5e>] ? create_object+0x21e/0x2c0
> [   12.174715]  [<ffffffff816180df>] dev_seq_show+0xf/0x30
> [   12.180098]  [<ffffffff8121260a>] seq_read+0x26a/0x400
> [   12.185384]  [<ffffffff81253d0e>] proc_reg_read+0x3e/0x70
> [   12.190943]  [<ffffffff811ee74f>] __vfs_read+0x2f/0xe0
> [   12.196245]  [<ffffffff812fe382>] ? security_file_permission+0xa2/0xb0
> [   12.202972]  [<ffffffff811ee858>] ? rw_verify_area+0x58/0xe0
> [   12.208799]  [<ffffffff811eea82>] vfs_read+0x92/0xd0
> [   12.213908]  [<ffffffff8120afce>] ? __fdget+0xe/0x10
> [   12.219024]  [<ffffffff811ef371>] SyS_read+0x51/0xb0
> [   12.224140]  [<ffffffff817548ee>] entry_SYSCALL_64_fastpath+0x12/0x71
>  done.
>
>  If I revert 6e85d5ad36a26debc23a9a865c029cbe242b2dc8 "r8169: Add values missing in @get_stats64 from HW counters"
> I don't get this message.
>
> Thank you!
>>
>>