Hi Amitkumar, On Tue, Oct 14, 2014 at 9:08 AM, Amitkumar Karwar <akarwar@xxxxxxxxxxx> wrote: > Hi Marek, > >>I tried both (slightly modified as we're in 3.9 kernel) but issue is >>still reproducible. My patch against 3.9 sources: > > Thanks a lot for the tests. > >>One thing which is not yet still clear to me why kernel console is >>completely unresponsive when receiving packets in high rates. When use >>iperf (on client) with -b40m it is OK but when increase to -b100m then >>console is completely unresponsive until iperf finish. > > Does the system recover when "-b100M" iperf is finished? Can we run iperf with "-b40M" later? > Do you see "dev_alloc_skb failed" messages in dmesg when console is unresponsive? When we get "dev_alloc_skb failed" then interface is dead (cannot ping ...) so no recovery is possible only system reboot. I don't see dev_alloc_skb failed when console is unresponsive. > >>Any other ideas >>what to change to check? Thanks. > > Could you please share dmesg log with dynamic debug enabled (using attached script) captured when the problem occurs? I tried to capture logs but when enable DYNAMIC_DEBUG I cannot reproduce issue (running test > 30 minutes without allocation failure). > > Best regards, > Amit BR, marek -- as simple and primitive as possible ------------------------------------------------- Marek Belisko - OPEN-NANDRA Freelance Developer Ruska Nova Ves 219 | Presov, 08005 Slovak Republic Tel: +421 915 052 184 skype: marekwhite twitter: #opennandra web: http://open-nandra.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
