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On Feb 16, 2007, at 5:10 PM, Robert Hancock wrote: > Kumar Gala wrote: >> I'm seeing an issue with a stock 2.6.20 kernel running on an >> embedded PPC. I've got a usb flash drive plugged in and the >> filesystem on the drive is vfat. Running with 64M and no swap. >> If I execute a series of large (100M+) ftruncate() on the disk the >> kernel will hang and never return. It seems to be stuck in the >> idle loop(). > > On FAT filesystems this forces the entire file contents of that > size to be written out with zeros. Are you sure the kernel just > isn't busy writing out all that data to the disk? I'm pretty sure, seeing as if I run the test it takes maybe 20-30 seconds to create the file if it succeeds. However, I've weighted 10 minutes and still no prompt. I'm also able to break in with a HW debugger and am always in the idle loop. - k - 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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