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Message-Id: <201011211343.34783.gene.heskett@gmail.com> Date: Sun, 21 Nov 2010 13:43:34 -0500 From: Gene Heskett <gene.heskett@...il.com> To: Ingo Molnar <mingo@...e.hu> Cc: Mike Galbraith <efault@....de>, Oleg Nesterov <oleg@...hat.com>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Linus Torvalds <torvalds@...ux-foundation.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v4] sched: automated per session task groups On Sunday, November 21, 2010, Ingo Molnar wrote: >Hello Mike, > >* Mike Galbraith <efault@....de> wrote: >> On Tue, 2010-11-16 at 18:28 +0100, Ingo Molnar wrote: >> > Mike, >> > >> > Mind sending a new patch with a separate v2 announcement in a new >> > thread, once you have something i could apply to the scheduler tree >> > (for a v2.6.38 merge)? >> >> Changes since last: >> - switch to per session vs tty >> - make autogroups visible in /proc/sched_debug >> - make autogroups visible in /proc/<pid>/autogroup >> - add nice level bandwidth tweakability to /proc/<pid>/autogroup > >I tested it a bit, and autosched-v4 crashes on bootup with with attached >config. > >Note: the box has serial logging enabled and there's UART code in the >stacktrace - maybe it's related. Let me know if you need the full bootup >log. > >Thanks, > > Ingo > >[FAILED] >Enabling local filesystem quotas: [ OK ] >PPS event at 4294886381 >Enabling /etc/fstab swaps: swapon: /dev/hda2: Function not implemented >[FAILED] >INIT: Entering runleveBUG: unable to handle kernel paging request at >f548604c IP:l: 3 [<c10307f0>] update_cfs_shares+0x60/0x160 >*pdpt = 0000000002017001 *pde = 00000000029d4067 *pte = 8000000035486160 >Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC >last sysfs file: /sys/block/sr0/dev > >Pid: 1, comm: init Not tainted 2.6.37-rc2-tip+ #64308 A8N-E/System >Product Name EIP: 0060:[<c10307f0>] EFLAGS: 00010086 CPU: 1 >EIP is at update_cfs_shares+0x60/0x160 >EAX: fffffffe EBX: f547603b ECX: 00000400 EDX: 00000002 >ESI: f5486000 EDI: 0000013b EBP: f6459d48 ESP: f6459d3c > DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 >Process init (pid: 1, ti=f6458000 task=f6450000 task.ti=f6458000) >Stack: > f5475a80 f6f066c0 00000004 f6459d84 c103256f 00000002 00000001 00000000 > c10324d0 c200e6c0 00000001 f6f06b34 00000046 f5475a80 f5475ac8 f6f066c0 > 00000001 ffffffff f6459dfc c1b32820 f64a0010 f6459dc4 00000046 00000000 >Call Trace: > [<c103256f>] update_shares+0x9f/0x170 > [<c10324d0>] ? update_shares+0x0/0x170 > [<c1b32820>] schedule+0x580/0x9d0 > [<c1039335>] ? sub_preempt_count+0xa5/0xe0 > [<c1b330e5>] schedule_timeout+0x125/0x2a0 > [<c104fe60>] ? process_timeout+0x0/0x10 > [<c15aef4f>] uart_close+0x17f/0x350 > [<c105fea0>] ? autoremove_wake_function+0x0/0x50 > [<c1471f72>] tty_release+0x102/0x500 > [<c1125fdf>] ? locks_remove_posix+0xf/0xa0 > [<c1119a43>] ? fsnotify+0x1e3/0x2f0 > [<c11198d3>] ? fsnotify+0x73/0x2f0 > [<c10ea1e1>] fput+0xb1/0x230 > [<c10e7e7e>] filp_close+0x4e/0x70 > [<c10e7f14>] sys_close+0x74/0xc0 > [<c1002b90>] sysenter_do_call+0x12/0x31 >Code: 00 00 00 8b 18 8b 79 1c 8b 49 18 2b b8 84 00 00 00 01 d3 89 d8 0f >af c1 01 fb 74 07 89 c2 c1 fa 1f f7 fb 83 f8 02 ba 02 00 00 00 <8b> 5e >4c 0f 4d d0 39 d1 0f 42 d1 8b 4e 1c 85 c9 0f 84 6a 00 00 EIP: >[<c10307f0>] update_cfs_shares+0x60/0x160 SS:ESP 0068:f6459d3c CR2: >00000000f548604c >---[ end trace f0ad48f53e29a8fe ]--- >Kernel panic - not syncing: Fatal exception >Pid: 1, comm: init Tainted: G D 2.6.37-rc2-tip+ #64308 >Call Trace: > [<c1b31ef1>] ? panic+0x66/0x15c > [<c10065c3>] ? oops_end+0x83/0x90 > [<c10220fc>] ? no_context+0xbc/0x190 > [<c102225d>] ? __bad_area_nosemaphore+0x8d/0x130 > [<c10219a4>] ? vmalloc_fault+0x14/0x1c0 > [<c1021b64>] ? spurious_fault+0x14/0x110 > [<c1022317>] ? bad_area_nosemaphore+0x17/0x20 > [<c1022741>] ? do_page_fault+0x281/0x4c0 > [<c1008756>] ? native_sched_clock+0x26/0x90 > [<c1066033>] ? sched_clock_local+0xd3/0x1c0 > [<c10224c0>] ? do_page_fault+0x0/0x4c0 > [<c1b361e2>] ? error_code+0x5a/0x60 > [<c10224c0>] ? do_page_fault+0x0/0x4c0 > [<c10307f0>] ? update_cfs_shares+0x60/0x160 > [<c103256f>] ? update_shares+0x9f/0x170 > [<c10324d0>] ? update_shares+0x0/0x170 > [<c1b32820>] ? schedule+0x580/0x9d0 > [<c1039335>] ? sub_preempt_count+0xa5/0xe0 > [<c1b330e5>] ? schedule_timeout+0x125/0x2a0 > [<c104fe60>] ? process_timeout+0x0/0x10 > [<c15aef4f>] ? uart_close+0x17f/0x350 > [<c105fea0>] ? autoremove_wake_function+0x0/0x50 > [<c1471f72>] ? tty_release+0x102/0x500 > [<c1125fdf>] ? locks_remove_posix+0xf/0xa0 > [<c1119a43>] ? fsnotify+0x1e3/0x2f0 > [<c11198d3>] ? fsnotify+0x73/0x2f0 > [<c10ea1e1>] ? fput+0xb1/0x230 > [<c10e7e7e>] ? filp_close+0x4e/0x70 > [<c10e7f14>] ? sys_close+0x74/0xc0 > [<c1002b90>] ? sysenter_do_call+0x12/0x31 >Rebooting in 1 seconds..Press any key to enter the menu And I just 2 hours ago got it working on 2.6.36.1(rc1) but had to learn and add to my 'makeit' script before I could make x work again. Yeah, I'm a bad bad boy, I run the latest nvidia drivers. A tail on the syslog is clean (so far anyway, uptime is 2:06). So you can have (FWTW) my reviewed by: Gene Heskett These patches are a definite keeper IMNSHO. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) On the whole, I'd rather be in Philadelphia. -- W.C. Fields' epitaph -- 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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