Hello: First of all, thank you for your quick answer. The kernel we are using is 2.6.35.4 (and 2.6.35.14, since a few days ago). We haven't tried Gerrit's development code, yet. I tried to read the code and understand it, and I also read the relevant RFCs (for example, 4342 and 5348, and also the draft specified in the source code), and I haven't yet been able to understand why that situation arises. We have not much experience with the Linux kernel source code. Thanks again for your answer. On 2 February 2012 17:38, Ian McDonald <ian.mcdonald@xxxxxxxxxxx> wrote: > Hi Jordi > > I am not actively working on this code at present so sending to > dccp@xxxxxxxxxxxxxxx. > > You will get asked a few questions so will ask them to you now: > - what version of kernel are you using? > - have you tried Gerrit's development code? > > The other thing with an experimental area of the Linux kernel is that > if you are lucky someone will respond, otherwise you might need to > learn the code and try and fix yourself. If you do not wish to do this > you might wish to engage a professional firm. I went and fixed much of > the code because I had problems I needed to resolve, for example. > > If I do get time then I may look at it, but highly unlikely I am afraid. > > Regards > > Ian > > On 2 February 2012 15:48, Jordi Salvador <salvador@xxxxxxxxxxxxxxxxx> wrote: >> >> Hello Mr. McDonald: >> >> We are developing an application on Linux which sends data using the >> DCCP protocol with CCID 3. Sometimes, while sending data, we get a bug >> message, originated in net/dccp/ccids/ccid3.c, line 240, and then the >> system freezes. Looking at the kernel source code we find the >> following: >> >> BUG_ON(hc->tx_p && !hc->tx_x_calc); >> >> We haven't been able to reproduce that bug (it just happens randomly), >> and we don't exactly understand the meaning of the condition that >> triggers the bug, nor how that condition may hold true. Could you >> point out us some ideas which could help us to understand why we are >> experiencing that bug and to understand its meaning? >> >> Thank you in advance. >> -- >> Jordi Salvador >> +34934980980 >> +34660842146 >> salvador@xxxxxxxxxxxxxxxxx >> >> Warning: This e-mail is privileged, confidential and contains private >> information. Any reading, retention, distribution or copying of this >> communication by any person other than its intended recipient is >> prohibited. -- Jordi Salvador +34934980980 +34660842146 salvador@xxxxxxxxxxxxxxxxx Warning: This e-mail is privileged, confidential and contains private information. Any reading, retention, distribution or copying of this communication by any person other than its intended recipient is prohibited. -- To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
