Hi tty experts, One of of our application (related to kdump) is failing because of a kernel change in tty layer. It fails to start "Kdump Vmcore Save Service" because it is not able to redirect all standard input/output messages to console (exec &> /dev/console). git bisect shows that "79c1faa4511e tty: Remove tty_wait_until_sent_from_close()" is the first bad commit. However, reverting only this patch on top of v4.4-rc3 does not help. Some basic debugging of tty driver shows that tty_reopen() fails with -EIO (tty->count was 0), when the problem arises. Please, let me know if you see a reason for this failure. Thanks ~Pratyush PS: Please keep me in cc, as I am not subscribed to linux-serial mailing list -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
