[pso] tema5 teste linux

Bogdan Tenea tenea.bogdan at gmail.com
Mon Jun 8 00:52:08 EEST 2009


Eu de exemplu am folosit copy_to_user (doh), spinlock_bh si GFP_KERNEL acolo
unde era cazul si tot am problemele astea.
Daca am scris despre problema noastra in readme mai trebuie sa trimitem
email ?

2009/6/8 Razvan Deaconescu <razvan.deaconescu at cs.pub.ro>

> On Sun, 2009-06-07 at 15:06 +0300, Razvan Deaconescu wrote:
> > Voi reveni cu un raspuns oficial pana diseara.
>
> Am crezut ca voi detecta problema, dar nu o pot reproduce pe
> implementarea "de referinta" :-)
>
> M-am uitat peste codul Adrianei si am observat urmatoarele "greseli":
> * foloseste read_lock, read_unlock nu read_lock_bh, read_unlock_bh in
> ioctl
> * foloseste GFP_ATOMIC in ioctl? de ce? nu se afla in context
> intrerupere si nici nu detine un spinlock
>
> Intrucat nu avem integrata optiunea de afisare a mesajelor de kernel in
> vmchecker nu se poate face debugging usor prin masina virtuala. Astfel
> ca, daca tema trece pe sistemul vostru dar nu pe site, o puteti lasa asa
> si ii puteti trimite e-mail responsabilului de tema (in cazul de fata
> Dragos) in care sa precizati "problema" voastra.
>
> Razvan
>
>
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