Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Thursday 11 November 2004 11:22, Cyril Bouthors wrote: > On 11 Nov 2004, cyril at bouthors.org wrote: > > The machine stop responding to ICMP requests after ~20 seconds; the > > same runs just fine if I use an UP kernel. > > I've just seen that the kernel said that during the last "make -j" > crash on the SMP kernel: > > Nov 11 10:49:26 filer2 kernel: sh: page allocation failure. order:0, > mode:0x50 Nov 11 10:49:26 filer2 kernel: [__alloc_pages+450/880] [...] > > I'm not a kernel hacker but it looks like an XFS problem :) > > Please let me know if it has nothing to do with DRBD. I would put it that way: 1st, it is an XFS bug. Because XFS does not handle the failure of a memory allocation at in a specific situation. -> A serious filesystem has to deal with such situations more gracefully. 2nd, DRBD makes the situation not better, since it causes network load during high disk-IO situations, but well, that is the purpose of DRBD, it is not a bug. It is interesting that XFS survives the same memory pressure in an UP kernel, I guess it is a realy subtile bug in XFS... -philipp -- : Dipl-Ing Philipp Reisner Tel +43-1-8178292-50 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Schönbrunnerstr 244, 1120 Vienna, Austria http://www.linbit.com :