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I found an easy way to hang the kernel when copying a SD-card: dd if=/dev/sdc of=file bs=1048576 I.e. copy the entire 256MB card in 1MB chunks. I got about 160MB before the kernel hung. Not even sysrq+B worked, I needed the reset button. The pc has a total of 512MB memory if that matters. Using bs=4096 instead let me copy the entire card with no problems, but that seems to progress slower. The above 'dd' command hangs my office pc every time. So I can repeat it for debugging purposes. Helge Hafting - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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