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Date: Tue, 6 Jan 2015 10:45:43 +0100 (CET) From: Jiri Kosina <jkosina@...e.cz> To: Dave Jones <davej@...emonkey.org.uk> cc: Linus Torvalds <torvalds@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Al Viro <viro@...iv.linux.org.uk>, Eric Paris <eparis@...hat.com> Subject: Re: Linux 3.19-rc3 On Mon, 5 Jan 2015, Dave Jones wrote: > > It's a day delayed - not because of any particular development issues, > > but simply because I was tiling a bathroom yesterday. But rc3 is out > > there now, and things have stayed reasonably calm. I really hope that > > implies that 3.19 is looking good, but it's equally likely that it's > > just that people are still recovering from the holiday season. > > > > A bit over three quarters of the changes here are drivers - mostly > > networking, thermal, input layer, sound, power management. The rest is > > misc - filesystems, core networking, some arch fixes, etc. But all of > > it is pretty small. > > > > So go out and test, > > This has been there since just before rc1. Is there a fix for this > stalled in someones git tree maybe ? This is an issue in fanotify code which has been there since ages, but only now has scheduler started to warn about this. I've reported it to Eric here: https://lkml.org/lkml/2014/12/30/95 but no response so far. Adding Eric to CC here as well. > [ 7.952588] WARNING: CPU: 0 PID: 299 at kernel/sched/core.c:7303 __might_sleep+0x8d/0xa0() > [ 7.952592] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff910a0f7a>] prepare_to_wait+0x2a/0x90 > [ 7.952595] CPU: 0 PID: 299 Comm: systemd-readahe Not tainted 3.19.0-rc3+ #100 > [ 7.952597] 0000000000001c87 00000000720a2c76 ffff8800b2513c88 ffffffff915b47c7 > [ 7.952598] ffffffff910a3648 ffff8800b2513ce0 ffff8800b2513cc8 ffffffff91062c30 > [ 7.952599] 0000000000000000 ffffffff91796fb2 000000000000026d 0000000000000000 > [ 7.952600] Call Trace: > [ 7.952603] [<ffffffff915b47c7>] dump_stack+0x4c/0x65 > [ 7.952604] [<ffffffff910a3648>] ? down_trylock+0x28/0x40 > [ 7.952606] [<ffffffff91062c30>] warn_slowpath_common+0x80/0xc0 > [ 7.952607] [<ffffffff91062cc0>] warn_slowpath_fmt+0x50/0x70 > [ 7.952608] [<ffffffff910a0f7a>] ? prepare_to_wait+0x2a/0x90 > [ 7.952610] [<ffffffff910a0f7a>] ? prepare_to_wait+0x2a/0x90 > [ 7.952611] [<ffffffff910867ed>] __might_sleep+0x8d/0xa0 > [ 7.952614] [<ffffffff915b8ea9>] mutex_lock_nested+0x39/0x3e0 > [ 7.952616] [<ffffffff910a77ad>] ? trace_hardirqs_on+0xd/0x10 > [ 7.952617] [<ffffffff910a0fac>] ? prepare_to_wait+0x5c/0x90 > [ 7.952620] [<ffffffff911a63e0>] fanotify_read+0xe0/0x5b0 > [ 7.952622] [<ffffffff91090801>] ? sched_clock_cpu+0xc1/0xd0 > [ 7.952624] [<ffffffff91242459>] ? selinux_file_permission+0xb9/0x130 > [ 7.952626] [<ffffffff910a14d0>] ? prepare_to_wait_event+0xf0/0xf0 > [ 7.952628] [<ffffffff91162513>] __vfs_read+0x13/0x50 > [ 7.952629] [<ffffffff911625d8>] vfs_read+0x88/0x140 > [ 7.952631] [<ffffffff911626e7>] SyS_read+0x57/0xd0 > [ 7.952633] [<ffffffff915bd952>] system_call_fastpath+0x12/0x17 > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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