Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-17 Thread Jeremiah Mahler
Takashi, On Wed, Dec 17, 2014 at 02:17:57PM +0100, Takashi Iwai wrote: > At Tue, 16 Dec 2014 12:03:51 -0800, > Jeremiah Mahler wrote: > > > > Al Viro, [...] > > > > > > OK, so the root is on sda6, it's been mounted before those attempts to > > > load firmware and init has been chrooted into it,

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-17 Thread Takashi Iwai
At Tue, 16 Dec 2014 12:03:51 -0800, Jeremiah Mahler wrote: > > Al Viro, > > On Tue, Dec 16, 2014 at 04:27:16PM +, Al Viro wrote: > > On Tue, Dec 16, 2014 at 07:26:26AM -0800, Jeremiah Mahler wrote: > > > > > > No such errors happen on the normal boot, presumably? > > > > > > > > > [2.39

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Jeremiah Mahler
Al Viro, On Tue, Dec 16, 2014 at 04:27:16PM +, Al Viro wrote: > On Tue, Dec 16, 2014 at 07:26:26AM -0800, Jeremiah Mahler wrote: > > > > No such errors happen on the normal boot, presumably? > > > > > > > [2.392117] EXT4-fs (sda5): mounting ext2 file system using the ext4 > > > > subsys

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Al Viro
On Tue, Dec 16, 2014 at 07:26:26AM -0800, Jeremiah Mahler wrote: > > No such errors happen on the normal boot, presumably? > > > > > [2.392117] EXT4-fs (sda5): mounting ext2 file system using the ext4 > > > subsystem > > > [2.393920] EXT4-fs (sda5): mounted filesystem without journal. Op

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Jeremiah Mahler
On Tue, Dec 16, 2014 at 03:05:18PM +, Al Viro wrote: > On Tue, Dec 16, 2014 at 06:46:10AM -0800, Jeremiah Mahler wrote: > > --- a/init/main.c > > +++ b/init/main.c > > @@ -1026,16 +1026,17 @@ static noinline void __init > > kernel_init_freeable(void) > > if (sys_access((const char __us

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Al Viro
On Tue, Dec 16, 2014 at 06:46:10AM -0800, Jeremiah Mahler wrote: > --- a/init/main.c > +++ b/init/main.c > @@ -1026,16 +1026,17 @@ static noinline void __init kernel_init_freeable(void) > if (sys_access((const char __user *) ramdisk_execute_command, 0) != > 0) { > ramdisk_e

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Jeremiah Mahler
Al Viro, On Tue, Dec 16, 2014 at 02:25:42PM +, Al Viro wrote: > On Tue, Dec 16, 2014 at 06:09:52AM -0800, Jeremiah Mahler wrote: > > > ramdisk_execute_command = NULL; > > > prepare_namespace(); > > > + { > > > + /* HACK */ > > > + struct path

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Al Viro
On Tue, Dec 16, 2014 at 06:09:52AM -0800, Jeremiah Mahler wrote: > > ramdisk_execute_command = NULL; > > prepare_namespace(); > > + { > > + /* HACK */ > > + struct path old, new; > > + get_fs_root(current->fs, &new); >

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Jeremiah Mahler
Al Viro, On Tue, Dec 16, 2014 at 01:28:21PM +, Al Viro wrote: > On Tue, Dec 16, 2014 at 12:56:15PM +, Al Viro wrote: > > On Tue, Dec 16, 2014 at 03:55:37AM -0800, Jeremiah Mahler wrote: > > > all, > > > > > > The wireless network interface has become inoperative when running > > > linux-n

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Al Viro
On Tue, Dec 16, 2014 at 12:56:15PM +, Al Viro wrote: > On Tue, Dec 16, 2014 at 03:55:37AM -0800, Jeremiah Mahler wrote: > > all, > > > > The wireless network interface has become inoperative when running > > linux-next 20141216 on a Lenovo Carbon X1. It is completely > > non-existent and `ip

Re: [BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Al Viro
On Tue, Dec 16, 2014 at 03:55:37AM -0800, Jeremiah Mahler wrote: > all, > > The wireless network interface has become inoperative when running > linux-next 20141216 on a Lenovo Carbon X1. It is completely > non-existent and `ip addr` doesn't show it. A bisect has found that > the bug was introdu

[BUG, linux-next] spawn PID 1 without CLONE_FS, wireless inop

2014-12-16 Thread Jeremiah Mahler
all, The wireless network interface has become inoperative when running linux-next 20141216 on a Lenovo Carbon X1. It is completely non-existent and `ip addr` doesn't show it. A bisect has found that the bug was introduced by the following commit. commit 9d328afb18f05c25686102ad890a67bb3ca38a