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Pandaboard NIC driver drops connections when under heavy load. This is a workaround fix to resolve the issue.
<nowiki># </nowiki> The driver smsc95xx, used by both Beagleboard XM and Pandaboard uses<br> <nowiki># </nowiki> turbo mode by default, that enables multiple frames per Rx transaction,<br><nowiki># </nowiki> increasing performance but consuming more kernel memory.<br><nowiki># </nowiki> To avoid page allocation failures and smsc kevent drops we need to<br> <nowiki># </nowiki> increase the minimum free system memory in the kernel to a higher value.<br> <nowiki># </nowiki> If you’re still having page allocation failures, try to increase this<br> <nowiki># </nowiki> value to 12288 or even higher. You could also disable the driver’s turbo<br> <nowiki># </nowiki> mode, but decreasing the ethernet performance.<br> <nowiki># </nowiki> If you encounter problems due to the settings please file a bug<br> <nowiki># </nowiki> against the jasper-initramfs ubuntu package.<br> <nowiki># </nowiki> For more details please check http://bugs.launchpad.net/bugs/746137<br>
vm.min_free_kbytes = 8192