On 09.09.2015 21:04, David Miller wrote:
> From: poma <pomidorabelis...@gmail.com>
> Date: Wed, 9 Sep 2015 20:34:36 +0200
>
>> [ 230.110233] [<ffffffff810218e6>] dma_generic_alloc_coherent+0x96/0x130
>> [ 230.110242] [<ffffffff81069865>] x86_swiotlb_alloc_coherent+0x25/0x50
>> [ 230.110250] [<ffffffff810215fd>] dma_alloc_attrs+0x6d/0xe0
>> [ 230.110265] [<ffffffffa002e25e>] rtl8169_map_counters+0x3e/0x70 [r8169]
>> [ 230.110277] [<ffffffffa002f674>] rtl8169_update_counters+0x64/0x140
>> [r8169]
>> [ 230.110289] [<ffffffffa002f8ff>] rtl8169_get_stats64+0xbf/0x130 [r8169]
>> [ 230.110299] [<ffffffff81700b74>] dev_get_stats+0x54/0x100
>
> The patch in question removes this call to dma_alloc_coherent() so you
> aren't running a kernel which actually has the patch applied.
>
Here is the obvious example - in use is what is patched:
$ grep MODULE_DESCRIPTION
rpmbuild/BUILD/kernel-4.2.fc24/linux-4.3.0-0.rc0.git9.1.fc24.x86_64/drivers/net/ethernet/realtek/r8169.c
MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver patched with
[PATCH v2] r8169: Fix sleeping function called during get_stats64");
$ modinfo -n r8169; modinfo -d r8169
/lib/modules/4.3.0-0.rc0.git9.1.fc24.x86_64/updates/r8169.ko
RealTek RTL-8169 Gigabit Ethernet driver patched with [PATCH v2] r8169: Fix
sleeping function called during get_stats64
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