Messages in this thread | | | From | "Hua Zhong" <> | Subject | RE: support of older compilers | Date | Fri, 5 Nov 2004 14:08:45 -0800 |
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At least in 2.4.17 I couldn't loopback mount an (ext2) image from tmpfs and had to use ramfs. Has this been fixed?
> > The kernel does do more these days than it did in '95. But > 6 times more? I > > dunno.. > > Can't we remove ramfs for a good start? Everyone should use > tmpfs instead > and some stupid distributions (I will not tell their names) > try to mount > ramfs on /dev (udev) and that leads to very stupid panic if you will > write for example: > > dd if=/dev/evms/sda5 of=/dev/sda17 bs=1024 > > instead of "of=/dev/evms/sda17". > > Explanation (if anybody needs one): > Kernel can't create more partition devices than 15 for SCSI > and SATA disks > because of lack of minor numbers. So I am using evms to create these > devices. So I should use /dev/evms/sda* for these partitions. > And if I > will not remember to do so then I will get oom panic very > shortly because > ramfs is not limited (in contrary to tmpfs). > > And this kind of stupid mistake can happen. It happened to me > 3 times in a > row before I started to debug what is wrong with this kernel. > > [BTW. Does somebody know how to tell the kernel that I do not want > /dev/sda[0-9]* files (but I do want /dev/hda files) created > == I do not > want kernel partition driver to touch this particular device?] > > And using ramfs for anything else can easily lead to similar > problems. So > I think we do not need ramfs. Am I wrong? [I understand that > removing it > will not remove much code.] > > > Thanks, > > Grzegorz Kulewski > > - > 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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