Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: Recursive chmod/chown OOM kills box with 32MB RAM | Date | Thu, 2 Feb 2006 17:17:04 +0200 |
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On Sunday 22 January 2006 01:20, Pavel Machek wrote: > > In the case of reiserfs, it might pin as much as the size of the journal at > > any time. The default journal is 32MB, which is much too large for a system > > with only 32MB of ram. > > > > You can shrink the log of an existing filesystem. The minimum size is 513 > > blocks, you might try 1024 as a good starting poing. > > > > reiserfstune -s 1024 /dev/xxxx > > > > The filesystem must be unmounted first. > > Could we refuse to mount filesystem unless journal_size < > physmem_size/2 or something like that? > > I was not aware of this trap, and it seems unlikely that users know > about it...
Maybe reiserfs code should use journal of reduced size on lowmem boxes. Basically "reiserfstune -s 1024 /dev/xxxx" on-the-fly. -- vda - 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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