> Transmission of an AP beacon does not call the TX interrupt service routine, > which usually does the cleanup. Instead, cleanup is handled in a tasklet > completion routine. Unfortunately, this routine has a serious bug in that it does > not release the DMA mapping before it frees the skb, thus one IOMMU mapping is > leaked for each beacon. The test system failed with no free IOMMU mapping slots > approximately one hour after hostapd was used to start an AP. > > This issue was reported and tested at https://github.com/lwfinger/rtlwifi_new/issues/30. > > Reported-and-tested-by: Kevin Mullican <kevin@xxxxxxxxxxxx> > Cc: Kevin Mullican <kevin@xxxxxxxxxxxx> > Signed-off-by: Shao Fu <shaofu@xxxxxxxxxxx> > Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx> > Cc: Stable <stable@xxxxxxxxxxxxxxx> [3.18+] Thanks, applied to wireless-drivers.git. Kalle Valo -- 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
