On 2012-09-20 12:56, Jan Kiszka wrote: > On 2012-09-20 12:49, Philippe Gerum wrote: >> On 09/20/2012 12:37 PM, Jan Kiszka wrote: >>> This reverts commit 073ff1e8045d0311b8cf390687c0ba3619681672. >>> >>> Both service are NOT just root-only services. E.g., rtdm_irq_request >>> requires by specification support also over non-Linux contexts. >> >> Nack. We can't run the enable code for MSIs over non-root, and >> that code typically follows the irq request. Besides, we want to mask >> the source upon irq free to handle the SMP case properly, which we could >> not do from non-root with MSIs. >> >> So either we have both request+enable and free usable over non-root, or >> there is no point. > > OK, I get the point with legacy MSI. Then we have two other bugs to solve: > - in I-pipe as it holds a hardened spin lock across enable/disable (of > MSIs) > - in Xenomai 2.6 (at least, didn't check forge) as it calls with a > hardened spin lock held into ipipe_virtualize_irq
Sorry, three bugs: - in the RTDM spec as it always allowed rtdm_irq_request over RT task contexts Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list Xenomai@xenomai.org http://www.xenomai.org/mailman/listinfo/xenomai
