Re: BUG REPORT: 2.4.4 hang on large network transfers with RTL-8139

[Glenn Shannon <glenn@gecpalau.com>]

Anton Voloshin wrote:

> Hello,
> 
> I've got a kernel hang (can easily be reproduced on my computer).
> It happens on relatively large outgoing network traffic.
> For instance, on trying to upload some large file from workstation to
> other machine via SMB or FTP.
> 
> On 2.4.4 hang was after sending about 20Kb.
> On 2.4.5 it seems to hang after 870+ Kb.
> When sending data via slow link (e.g. local Ethernet -> remote modem),
> everything is Ok.
> 
> Network card is (taken from /proc/pci):
> 
>   Bus  1, device  11, function  0:
>     Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 16).
>       IRQ 10.
>       Master Capable.  Latency=208.  Min Gnt=32.Max Lat=64.
>       I/O at 0x7800 [0x78ff].
>       Non-prefetchable 32 bit memory at 0xfebfff00 [0xfebfffff].
> 
> 2.4.3 works Ok, 2.4.4 and 2.4.5 both has this problem.
> 
> Lamer's assumption: maybe troubles with sendfile() after zero-copy patches?
> 
Actually I get the same problem (I kind of have to run 2.4.5-ac2 
however). I just try not to download or upload large files over fast links.

Glenn Shannon