From: gqbenjamin@21cn.com
To: linuxppc-embedded@ozlabs.org <linuxppc-embedded@ozlabs.org>
Cc: gqben@sina.com
Subject: Ethernet on Linux for MPC8250
Date: Mon, 11 Apr 2005 15:31:26 +0800 (CST) [thread overview]
Message-ID: <PA949588846873.25549@webmail2.inner-21cn.com> (raw)
hi,
i use *SmartBits* to test the Ethernet rate of mpc8250, kernel is linux-2.4.20 with CONFIG_FCC_LXT971 and CONFIG_USE_MDIO.
if *SmartBits*'s rate set too high, for example 100 Mbps Full Duplex, each packet is 1514 Bytes, the kernel print '... Memory squeeze, dropping packet.' on uart.
later, stop *smartbits* and *cat /proc/meminfo*, the *MemFree* become small, try again, become smaller, look like the allocated memory do not be free.
finally the kernel break down, because all memory have been used.
Q. how can i do to let kernel do not break down? this problem is kernel's promblem?
i use linux-2.6.5 for mpc8250 to test, and get the same result.
have a nice day.
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reply other threads:[~2005-04-11 7:47 UTC|newest]
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