hello we are getting same error messages . Our configuration is arm cortex A8(AM3359) processor running android 2.3.4. We are making some data transfers on rs232 using custom android application . My application also freezes with the same message on console.. Will the same patch work for my configuration
Thanks On Thursday, 22 April 2010 19:42:06 UTC+5:30, Pantelis Antoniou wrote: > > Hello all, > > In recent kernels we encountered very mysterious binder related > crashes, and only on a particular board port on powerpc. > > The symptoms were a backtrace from a WARN at kernel/workqueue.c > flush_cpu_workqueue and afterwards the system hanged with a flurry of > > binder: 1903: binder_alloc_buf, no vma > binder: 2084:2084 transaction failed 536900113, size60-0 > > messages. > > It turns out the reason is that the deffered path was executed > from a workqueue context, and called files_put. > > files_put would call recursively flush the workqueue, and we > ended up recursively at flush_cpu_workqueue. > > That workqueue got blocked and soon after we crashed. > > There is a patch pending in linux testing that detects the recursion but > the backtrace still remains, and it's problematic. > > We fixed it, by creating a binder kthread that handles the deferred > operations. > > We include a reworked patch against the top of the android mainline > kernel. > > Hope this helps anyone encountering the same problem, like anil with > the eclair porting problem: (Subject eclair-porting-problem) > > Regards > > -- Pantelis > > -- -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel --- You received this message because you are subscribed to the Google Groups "Android Linux Kernel Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-kernel+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
