Messages in this thread | | | Date | Thu, 12 Dec 2002 20:09:52 -0800 | From | Andrew Morton <> | Subject | Re: [2.5.51] Failure to mount ext3 root when ext2 compiled in |
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Rusty Russell wrote: > > Just noticed this (usually ext2 is compiled as a module, but was > testing a patch with CONFIG_MODULES=n). Reverted to plain 2.5.51, and > it's still there: > > VFS: Cannot open root device "301" or 03:01 > Please append a correct "root=" boot option > Kernel panic: VFS: Unable to mount root fs on 03:01 > > Now, I have an ext3 root, but when CONFIG_EXT3_FS=y and > CONFIG_EXT2_FS=y, I get this failure. Turning off CONFIG_EXT2_FS > "fixes" it. >
In the past year I've booted about 1,000,000,000 kernels with CONFIG_EXT2_FS=y and CONFIG_EXT3_FS=y. Across that period, maybe five or ten times I have seen this problem.
As soon as I get down to debug it it goes away. I once traced it as far as seeing ext3_fill_super() return failure, then I lost it.
Rebuilding the kernel, even if you "didn't change anything" makes it go away.
I assume that in your case a `make clean' will not fix it. You lucky duck. Can you stick a printk right at the end of ext3_fill_super()? - 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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