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Message-ID: <20090113140441.GA5638@dhcp35.suse.cz> Date: Tue, 13 Jan 2009 15:04:41 +0100 From: Michal Hocko <mhocko@...e.cz> To: Zdenek Kabelac <zdenek.kabelac@...il.com> Cc: "Rafael J. Wysocki" <rjw@...k.pl>, Maciej Rutecki <maciej.rutecki@...il.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Henrique de Moraes Holschuh <hmh@....eng.br> Subject: Re: 2.6.29-rc1 does not resume on Lenove T61 Hi, I don't have Lenovo T61 but I seem to experience similar resume problem with Fujitsu Siemens E series notebook except for auto-resume issue which I have never experienced. On Mon 12-01-09 13:50:12, Zdenek Kabelac wrote: > 2009/1/12 Rafael J. Wysocki <rjw@...k.pl>: > > On Monday 12 January 2009, Zdenek Kabelac wrote: > >> 2009/1/12 Rafael J. Wysocki <rjw@...k.pl>: > >> > On Sunday 11 January 2009, Zdenek Kabelac wrote: > >> >> 2009/1/11 Maciej Rutecki <maciej.rutecki@...il.com>: > >> >> > 2009/1/11 Zdenek Kabelac <zdenek.kabelac@...il.com>: > >> >> >> Hi > >> >> >> > >> >> >> I've booted and tested 2.6.29-rc1 (c59765042f53a79a7a65585042ff463b69cb248c) > >> >> >> > >> >> >> I've observed that suspend is unusable - it goes to sleep - the sleep > >> >> >> LED is on. After few secs system turns on back itself - and stays in > >> >> >> some frozen state > >> >> > > >> >> > A have similar situation, one difference: I get blank screen during > >> >> > resume from suspend to ram. Also sometimes, like You, system turns on > >> >> > back itself. > >> >> > > >> >> > >> >> So it looks like reverting this commit: > >> >> > >> >> http://marc.info/?l=linux-kernel&m=123140019117968&w=4 > >> >> (6fd9086a518d4f14213a32fe6c9ac17fabebbc1e) > >> >> (which is already a tracked regression) > >> >> fixes the problem with auto-resume > >> >> > >> >> But the problem with deadlock in the resume phase is still there. > >> > > >> > Please check if unloading all of the USB controller modules before suspend > >> > helps. > >> > >> I've booted to single mode without usbcore module (thus any load of > >> other usb modules fails) > >> (removed from initramdisk as well) > >> > >> This time the resume stops with these 3 lines (I'm using > >> no_console_suspend kernel option): > >> > >> .... > >> thinkpad_acpi thinkpad_acpi: EARLY resume > >> thinkpad_hwmon thinkpad_hwmon: EARLY resume > >> Enabling non-boot CPUs... > > > > So it seems we have broken CPU hotplug again. > > > > Does disabling/enabling CPU1 using > > /sys/devices/system/cpu/cpu1/online work? > > > > If it does, please boot with 'no_console_suspend' in the kernel command line, > > run: > > > > # echo core > /sys/power/pm_test > > # echo 8 > /proc/sys/kernel/printk > > # echo mem > /sys/power/state > > > > and see what happens (you need to have PM_DEBUG set in the kernel .config). > > > > Please send dmesg output generated right after the above (if it works). > > > I've taken from another Ingo's thread the idea to revert patch: > > 7503bfbae89eba07b46441a5d1594647f6b8ab7d > > > With this patch reverted and o/e/uhci_hcd & usbhid modules removed > before pm-suspend > (usbcore could be loaded, I've not trace which one of those usb > modules makes the problem) > my system resumes properl again. This patch reverted helped to get my machine back up (if I suspend from X) from s2r but screen is blank until I try to get to text console and back. I have tried to run the test suggested by Rafael, but I am not able to resume (see attached suspend&resume log with Sysrq+T at the end). I can see the following BUG during resume: [...] platform dock.1: LATE suspend platform dock.0: LATE suspend suspend debug: Waiting for 5 seconds. BUG: using smp_processor_id() in preemptible [00000000] code: sh/2497 caller is retrigger_next_event+0x12/0xa5 Pid: 2497, comm: sh Tainted: G W 2.6.29-rc1-resume-fix #8 Call Trace: [<c0401662>] ? printk+0xf/0x11 [<c023148a>] debug_smp_processor_id+0xa2/0xb8 [<c0137f10>] retrigger_next_event+0x12/0xa5 [<c0403d79>] ? _spin_unlock+0xf/0x23 [<c0138059>] hres_timers_resume+0xa/0xc [<c013b7ee>] timekeeping_resume+0xf9/0xff [<c028d600>] __sysdev_resume+0x14/0x38 [<c028d645>] sysdev_resume+0x21/0x54 [<c0291e90>] device_power_up+0xb/0x15 [<c0146fd2>] suspend_devices_and_enter+0xf7/0x159 [<c0147189>] enter_state+0x130/0x190 [<c0147278>] state_store+0x8f/0xa2 [<c01471e9>] ? state_store+0x0/0xa2 [<c0229505>] kobj_attr_store+0x1a/0x22 [<c01b4e07>] sysfs_write_file+0xb4/0xdf [<c01b4d53>] ? sysfs_write_file+0x0/0xdf [<c017de95>] vfs_write+0x8a/0x12e [<c017dfd2>] sys_write+0x3b/0x60 [<c0102f71>] sysenter_do_call+0x12/0x25 [...] I am not able to resume from the text console (e.g. with init=/bin/sh results in the blanks screen) but when I resume from X and try to change to a text console I cannot see anything (X seems to work correctly). > > Zdenek > > PS: I'll do the above 'echo' trace later (being busy right now). > -- > 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/ -- Michal Hocko L3 team SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic View attachment "resume-fix-debug.log" of type "text/plain" (53238 bytes) View attachment "config-2.6.29-rc1-resume-fix" of type "text/plain" (60767 bytes)
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