On 09/04/2018, 03:51 AM, Sergey Senozhatsky wrote: > On (09/03/18 17:52), Dmitry Safonov wrote: >> >> We've seen the following crash on v4.9.108 stable: >> >> BUG: unable to handle kernel paging request at 0000000000002260 >> IP: [..] n_tty_receive_buf_common+0x5f/0x86d >> Workqueue: events_unbound flush_to_ldisc >> Call Trace: >> [..] n_tty_receive_buf2 >> [..] tty_ldisc_receive_buf >> [..] flush_to_ldisc >> [..] process_one_work >> [..] worker_thread >> [..] kthread >> [..] ret_from_fork >> >> tty_ldisc_reinit() should be called with ldisc_sem hold for writing, >> which will protect any reader against line discipline changes. >> >> Cc: Greg Kroah-Hartman <[email protected]> >> Cc: Jiri Slaby <[email protected]> >> Cc: [email protected] # depends on commit b027e2298bd5 ("tty: fix >> data race between tty_init_dev and flush of buf") > > I believe there's a "Fixes" tag for that > > Fixes: b027e2298bd5 ("tty: fix data race between tty_init_dev and flush of > buf") > Cc: [email protected]
Nope, it would be translated as: Backport-first: b027e2298bd5 :) thanks, -- js suse labs
