On Sun, Jan 26, 2014 at 4:03 PM, Francois Romieu <rom...@fr.zoreil.com> wrote: > Sander Eikelenboom <li...@eikelenboom.it> : > [...] >> I have got a regression with a 3.14-mw kernel (last commit is >> 4ba9920e5e9c0e16b5ed24292d45322907bb9035): >> It looks like it's related to the rtl8169 ... >> >> -- >> Sander >> >> Jan 26 11:36:26 serveerstertje kernel: [ 89.105537] ------------[ cut here >> ]------------ >> Jan 26 11:36:26 serveerstertje kernel: [ 89.116779] WARNING: CPU: 0 PID: 0 >> at lib/dma-debug.c:491 add_dma_entry+0x103/0x130() >> Jan 26 11:36:26 serveerstertje kernel: [ 89.128148] DMA-API: exceeded 7 >> overlapping mappings of pfn 55ebe >> Jan 26 11:36:26 serveerstertje kernel: [ 89.139397] Modules linked in: >> Jan 26 11:36:26 serveerstertje kernel: [ 89.150535] CPU: 0 PID: 0 Comm: >> swapper/0 Not tainted 3.13.0-20140125-mw-pcireset+ #1 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.161784] Hardware name: MSI >> MS-7640/890FXA-GD70 (MS-7640) , BIOS V1.8B1 09/13/2010 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.172965] 0000000000000009 >> ffff88005f603838 ffffffff81acbcfa ffffffff822134e0 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.184156] ffff88005f603888 >> ffff88005f603878 ffffffff810bdf62 ffff880000000000 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.195186] 0000000000055ebe >> 00000000ffffffef 0000000000000200 ffff8800592ea098 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.206227] Call Trace: >> Jan 26 11:36:26 serveerstertje kernel: [ 89.217027] <IRQ> >> [<ffffffff81acbcfa>] dump_stack+0x46/0x58 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.227907] [<ffffffff810bdf62>] >> warn_slowpath_common+0x82/0xb0 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.238678] [<ffffffff810be031>] >> warn_slowpath_fmt+0x41/0x50 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.249336] [<ffffffff81471c5a>] >> ? active_pfn_read_overlap+0x3a/0x70 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.259904] [<ffffffff814729e3>] >> add_dma_entry+0x103/0x130 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.270416] [<ffffffff81472de6>] >> debug_dma_map_page+0x126/0x150 >> Jan 26 11:36:26 serveerstertje kernel: [ 89.280840] [<ffffffff81714686>] >> rtl8169_start_xmit+0x216/0xa20 > [r8169 and xen stuff] > > Dan, I miss the part of the debug code that tells where the mappings were > previously set.
In this case it was a facepalm mistake on my part. The mappings were not being properly accounted in the last revision of the patch I sent. I copied you on the fix [1]. -- Dan [1]: http://marc.info/?l=linux-netdev&m=139096447627032&w=2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
