https://bugzilla.kernel.org/show_bug.cgi?id=151661 --- Comment #18 from Arkadiusz Miskiewicz <arekm@xxxxxxxx> --- The problem was introduced with commit below. Reverting this commit from kernel 4.9.3 makes the problem go away. https://lkml.org/lkml/2017/1/15/47 commit 78cbccd3bd683c295a44af8050797dc4a41376ff Author: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@xxxxxxxxxxxxx> Date: Mon Apr 25 23:32:37 2016 -0700 aacraid: Fix for KDUMP driver hang When KDUMP is triggered the driver first talks to the firmware in INTX mode, but the adapter firmware is still in MSIX mode. Therefore the first driver command hangs since the driver is waiting for an INTX response and firmware gives a MSIX response. If when the OS is installed on a RAID drive created by the adapter KDUMP will hang since the driver does not receive a response in sync mode. Fixed by: Change the firmware to INTX mode if it is in MSIX mode before sending the first sync command. Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@xxxxxxxxxxxxx> Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx> Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
