On Wed, 6 Dec 2017, SF Markus Elfring wrote: > >>> Does the existing memory allocation error message include the > >>> &udev->dev device name and driver name? If it doesn't, there will be > >>> no way for the user to tell that the error message is related to the > >>> device failure. > >> > >> No, but the effect is similar. > >> > >> OOM does a dump_stack() so this function's call tree is shown. > > > > A call stack doesn't tell you which device was being handled. > > Do you find a default Linux allocation failure report insufficient then? > > Would you like to to achieve that the requested information can be determined > from a backtrace? It is not practical to do this. The memory allocation routines do not for what purpose the memory is being allocated; hence when a failure occurs they cannot tell what device (or other part of the system) will be affected. That's why we have a secondary error message. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
