[Bug 567660] Re: Suspend and Hibernate cause ksoftirqd to use 100% of a cpu core on resume

[Mark Fernandes]

This issue has not been resolved as of:

#uname -a
Linux adler 2.6.32-24-generic #42-Ubuntu SMP Fri Aug 20 14:21:58 UTC 2010 x86_64 GNU/Linux

#top|head
top - 21:33:45 up  2:25,  2 users,  load average: 1.16, 1.05, 0.70
Tasks: 180 total,   3 running, 177 sleeping,   0 stopped,   0 zombie
Cpu(s):  9.7%us,  2.1%sy,  0.0%ni, 82.9%id,  0.7%wa,  0.0%hi,  4.6%si,  0.0%st
Mem:   4055620k total,  1567716k used,  2487904k free,    94160k buffers
Swap:  3858388k total,        0k used,  3858388k free,   513732k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                         
 4806 root      20   0     0    0    0 R  101  0.0   8:35.37 ksoftirqd/1                                                                                                      
 1308 root      20   0  210m 103m  20m S    2  2.6   6:12.78 Xorg                                                                                                             
 3162 mark      20   0  239m  47m  20m S    2  1.2   1:11.44 compiz    

#lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 9800M GTX] (rev a2)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
04:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller
04:00.1 System peripheral: JMicron Technology Corp. SD/MMC Host Controller
04:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller
04:00.3 System peripheral: JMicron Technology Corp. MS Host Controller
07:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN [Shiloh] Network Connection


I cannot use suspend on my laptop because this bug eventually eats up CPU and puts tremendous load on the laptop.
Any help would really be appreciated.

-- 
Suspend and Hibernate cause ksoftirqd to use 100% of a cpu core on resume
https://bugs.launchpad.net/bugs/567660
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