[pso] tema5 teste linux

Adriana Draghici adriana008 at gmail.com
Mon Jun 8 00:57:56 EEST 2009


am lasat cu rw lock in loc de spinlock_bh pt ca Adriana S mi-a spus ca a
folosit spinlock_bh si tot ii pica testele si atunci nu am mai dat
importanta sa schimb lock-urile folosite, ba la un upload le si comentasem
parca.


2009/6/8 Bogdan Tenea <tenea.bogdan at gmail.com>

> 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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