Re: tty: sleeping function in invalid in context do_con_write and deadlock in gsm_control_retransmit

2016-09-05 Thread One Thousand Gnomes
On Sat, 3 Sep 2016 13:07:27 +0200 Dmitry Vyukov wrote: > Hello, > > While running syzkaller fuzzer on > 0f98f121e1670eaa2a2fbb675e07d6ba7f0e146f of linux-next, I've for the > following splash. Note there are 2 separate bugs (but maybe related): > There are a couple of known cases where strange

tty: sleeping function in invalid in context do_con_write and deadlock in gsm_control_retransmit

2016-09-03 Thread Dmitry Vyukov
Hello, While running syzkaller fuzzer on 0f98f121e1670eaa2a2fbb675e07d6ba7f0e146f of linux-next, I've for the following splash. Note there are 2 separate bugs (but maybe related): BUG: sleeping function called from invalid context at drivers/tty/vt/vt.c:2195 [ INFO: possible irq lock inversion de