Hi. In future replies, please CC the list. Does it panic in during the kmalloc, or afterwards? Are you checking if 'newBun' is NULL? I may be missing something obvious in that code, but unless you are out of memory or with some past corruption, I don't think that should panic the kernel. In any case, the panic trace should help. Cheers. --- João Eduardo Luís gpg key: 477C26E5 from pool.keyserver.eu On Jun 3, 2011, at 7:50 PM, Amirali Shambayati wrote: > thanks for your guidance. I just want to allocate memory for a struct. I use this: > > struct bundle* newBun; > newBun = kmalloc(sizeof(*newBun), GFP_KERNEL); > > but it goes to panic state. > > 2011/6/3 João Eduardo Luís <jecluis@xxxxxxxxx> > Hi. > > From [1] I'm lead to believe the only difference between the regular kmalloc() arguments and those of kmalloc_node() is the one specifying which node you want to allocate the memory on. > > Aside from the third argument, which seems to be related with NUMA (with which I never worked on kernel-context), I would suggest you to read [2]. > > If on the other hand you only want to allocate memory locally, maybe you should use kmalloc() or one of its variants [3]. > > > Cheers. > > > [1] - http://www.kernel.org/doc/htmldocs/kernel-api/API-kmalloc-node.html > [2] - http://www.kernel.org/doc/htmldocs/kernel-api/API-kcalloc.html > [3] - http://www.kernel.org/doc/htmldocs/kernel-api/mm.html#id408507 > --- > João Eduardo Luís > gpg key: 477C26E5 from pool.keyserver.eu > > > > > > On Jun 3, 2011, at 7:07 PM, Amirali Shambayati wrote: > > > > > Hello all, > > > > I just want to allocate memory for a struct instantiation. Would anyone guide me what arguments I should pass to "kmalloc_node"? > > Regards, > > -- > > Amirali Shambayati > > Bachelor Student > > Computer Engineering Department > > Sharif University of Technology > > Tehran, Iran > > > > _______________________________________________ > > Kernelnewbies mailing list > > Kernelnewbies@xxxxxxxxxxxxxxxxx > > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > > > > -- > Amirali Shambayati > Bachelor Student > Computer Engineering Department > Sharif University of Technology > Tehran, Iran >
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