On 2013.05.02 at 12:43 +0200, Thomas Gleixner wrote: > On Tue, 30 Apr 2013, Markus Trippelsdorf wrote: > > > Just booted todays git tree and got the following warning: > > > > ------------[ cut here ]------------ > > WARNING: at kernel/cpu/idle.c:96 cpu_startup_entry+0x14d/0x160() > > Hardware name: System Product Name > > Pid: 0, comm: swapper/2 Not tainted 3.9.0-03462-gab86e97-dirty #424 > > Call Trace: > > smpboot: Booting Node 0, Processors #1 #2 > > [<ffffffff8105b7c0>] ? warn_slowpath_common+0x60/0xa0 > > [<ffffffff8108c26d>] ? cpu_startup_entry+0x14d/0x160 > > ---[ end trace 40a24a5550891913 ]--- > > Fix below.
Unfortunately the fix doesn't work: ------------[ cut here ]------------ WARNING: at kernel/cpu/idle.c:96 cpu_startup_entry+0x14d/0x160() CPU: 2 PID: 0 Comm: swapper/2 Not tainted 3.9.0-07391-g20b4fb4-dirty #432 Hardware name: System manufacturer System Product Name/M4A78T-E, BIOS 3503 04/13/2011 ffffffff81528e8b ffffffff8105b791 ffff8802168b1fd8 ffff8802168b1fd8 ffff8802168b1fd8 ffff8802168b1fd8 ffff8802168b1fd8 ffffffff8108cc8d 0000000010001b76 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff81528e8b>] ? dump_stack+0xc/0x15 [<ffffffff8105b791>] ? warn_slowpath_common+0x51/0x80 [<ffffffff8108cc8d>] ? cpu_startup_entry+0x14d/0x160 ---[ end trace 35da8e4b222a0736 ]--- BTW another issue is that "perf top" shows the following on an otherwise idle machine: 67.76% [kernel] [k] cpu_startup_entry 12.90% [kernel] [k] amd_e400_idle -- Markus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
