Messages in this thread |  | | | Date | Thu, 17 Jun 2010 12:13:52 -0700 | | Subject | Re: [PATCH v3 00/10] BKL conversion in tty layer | | From | Tony Luck <> |
| |
On Mon, May 17, 2010 at 6:41 AM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: > At this point I think the only way to make further progress is to > actually push this stuff into the kernel on top of the BKL removal > patches for the drivers and see what happens. Something will no doubt > break but we can try and nail them in time or if not revert the series > and try again next kernel.
These changes showed up in linux-next (tag: next-20100617) ... and I'm seeing a few WARN_ON messages on ia64 while booting:
WARNING: at include/linux/tty.h:589 tty_open+0x160/0xc60() WARNING: at include/linux/tty.h:589 tty_open+0x9d0/0xc60() WARNING: at include/linux/tty.h:589 tty_release+0x90/0xbc0() WARNING: at include/linux/tty.h:589 tty_release+0x630/0xbc0() WARNING: at include/linux/tty.h:589 tty_release+0x90/0xbc0() WARNING: at include/linux/tty.h:589 tty_release+0x630/0xbc0() WARNING: at include/linux/tty.h:589 tty_release+0x90/0xbc0() WARNING: at include/linux/tty.h:589 tty_release+0x630/0xbc0()
Stack trace for the first of these looks like: Call Trace: [<a0000001000159d0>] show_stack+0x50/0xa0 [<a00000010090f250>] dump_stack+0x30/0x50 [<a00000010008e2c0>] warn_slowpath_common+0xc0/0x120 [<a00000010008e360>] warn_slowpath_null+0x40/0x60 [<a00000010053ebe0>] tty_open+0x160/0xc60 [<a0000001001af9b0>] chrdev_open+0x310/0x360 [<a0000001001a58b0>] __dentry_open+0x350/0x680 [<a0000001001a5d80>] nameidata_to_filp+0x80/0xc0 [<a0000001001bfee0>] finish_open+0x160/0x380 [<a0000001001c0cc0>] do_last+0xbc0/0xce0 [<a0000001001c5270>] do_filp_open+0x2f0/0xb40 [<a0000001001a5290>] do_sys_open+0x90/0x200 [<a0000001001a54d0>] sys_open+0x50/0x80 [<a000000100b907e0>] kernel_init+0x340/0x420 [<a000000100013c10>] kernel_thread_helper+0x30/0x60 [<a00000010000a0c0>] start_kernel_thread+0x20/0x40 Does anyone see anything similar on other architectures? Or is ia64 doing something "special" here?
-Tony
|  |