Hi, I hope I've come to the right place; I'm going based on the information in my kernel's MAINTAINERS file. I have been using suspend2 with a 2.6.18 kernel, my Thinkpad T60p, and a Thinkpad Advanced dock. When resuming (from disk), suspend2 puts all the USB devices into a suspended state so they're consistent with the state at suspend time. If I have any devices plugged into the dock's USB ports, it's very common that the devices fail to enter a suspended state (or so the APIs report). When that happens, suspend2 forces a segfault and all heck breaks loose (log excerpt appended) -- suffice it to say I lose my suspended state, all the filesystems need to be checked, and often it takes an additional reboot just to make everything healthy again -- so it's really important to me to address this problem. Please let me know if there's anything I can do to help track this down. Thanks, Dave --- /var/log/syslog excerpt --- Oct 11 22:11:40 pereiro kernel: [ 7.004000] Atomic restore preparation Oct 11 22:11:40 pereiro kernel: [ 7.008000] Freezing cpus ... Oct 11 22:11:40 pereiro kernel: [ 7.080000] usb 5-6.1: new low speed USB device using ehci_hcd and address 5 Oct 11 22:11:40 pereiro kernel: [ 7.128000] CPU 1 is now offline Oct 11 22:11:40 pereiro kernel: [ 7.128000] SMP alternatives: switching to UP code Oct 11 22:11:40 pereiro kernel: [ 7.128000] CPU1 is down Oct 11 22:11:40 pereiro kernel: [ 7.192000] usb 5-6.1: configuration #1 chosen from 1 choice Oct 11 22:11:40 pereiro kernel: [ 7.392000] usb 5-6.2: new full speed USB device using ehci_hcd and address 6 Oct 11 22:11:40 pereiro kernel: [ 7.484000] usb 5-6.2: configuration #1 chosen from 1 choice Oct 11 22:11:40 pereiro kernel: [ 7.484000] suspend_device(): usb_generic_suspend+0x0/0x15c [usbcore]() returns -16 Oct 11 22:11:40 pereiro kernel: [ 7.484000] usbcore: registered new driver hiddev Oct 11 22:11:40 pereiro kernel: [ 7.484000] Could not suspend device 5-6: error -16 Oct 11 22:11:40 pereiro kernel: [ 7.492000] Some devices failed to suspend Oct 11 22:11:40 pereiro kernel: [ 7.492000] ------------[ cut here ]------------ Oct 11 22:11:40 pereiro kernel: [ 7.492000] kernel BUG at kernel/power/atomic_copy.c:496! Oct 11 22:11:40 pereiro kernel: [ 7.492000] invalid opcode: 0000 [#1] Oct 11 22:11:40 pereiro kernel: [ 7.492000] PREEMPT SMP Oct 11 22:11:40 pereiro kernel: [ 7.492000] Modules linked in: usbhid dm_mod ide_generic ehci_hcd uhci_hcd usbcore piix generic sd_mod thermal processor fan fbcon tileblit font bitblit softcursor Oct 11 22:11:40 pereiro kernel: [ 7.492000] CPU: 0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] EIP: 0060:[suspend_atomic_restore+487/544] Not tainted VLI Oct 11 22:11:40 pereiro kernel: [ 7.492000] EFLAGS: 00010246 (2.6.18-local-20060823 #2) Oct 11 22:11:40 pereiro kernel: [ 7.492000] EIP is at suspend_atomic_restore+0x1e7/0x220 Oct 11 22:11:40 pereiro kernel: [ 7.492000] eax: 00004010 ebx: 00000000 ecx: 00000000 edx: 00000002 Oct 11 22:11:40 pereiro kernel: [ 7.492000] esi: 00000001 edi: 00000001 ebp: c0393270 esp: dfcadef0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] ds: 007b es: 007b ss: 0068 Oct 11 22:11:40 pereiro kernel: [ 7.492000] Process busybox (pid: 2428, ti=dfcac000 task=c21ed290 task.ti=dfcac000) Oct 11 22:11:40 pereiro kernel: [ 7.492000] Stack: c034fc04 c034cd8f 00000001 00000001 c014c6ee 00000000 c014c921 00000000 Oct 11 22:11:40 pereiro kernel: [ 7.492000] c014c7a7 c014e9f3 00000000 c13fb860 fffa8278 00000000 00000000 00000001 Oct 11 22:11:40 pereiro kernel: [ 7.492000] df802a40 00000001 00000001 df802a54 c01cc84c c03931b8 c0393270 dfdc3000 Oct 11 22:11:40 pereiro kernel: [ 7.492000] Call Trace: Oct 11 22:11:40 pereiro kernel: [ 7.492000] [suspend_resume+110/272] suspend_resume+0x6e/0x110 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [suspend_start_anything+81/192] suspend_start_anything+0x51/0xc0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [__suspend_try_resume+23/48] __suspend_try_resume+0x17/0x30 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [suspend2_attr_store+99/688] suspend2_attr_store+0x63/0x2b0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [sysfs_write_file+156/240] sysfs_write_file+0x9c/0xf0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [vfs_write+222/448] vfs_write+0xde/0x1c0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [sys_write+75/128] sys_write+0x4b/0x80 Oct 11 22:11:40 pereiro kernel: [ 7.492000] [syscall_call+7/11] syscall_call+0x7/0xb Oct 11 22:11:40 pereiro kernel: [ 7.492000] Code: 16 00 0f 0b 13 02 74 cd 34 c0 83 c4 08 b8 01 00 00 00 5e 5f c3 c7 04 24 04 fc 34 c0 e8 23 5f fd ff a1 04 2d 39 c0 f6 c4 10 75 17 <0f> 0b f0 01 74 cd 34 c0 e9 6a fe ff ff e8 37 82 ff ff e9 47 fe Oct 11 22:11:40 pereiro kernel: [ 7.492000] EIP: [suspend_atomic_restore+487/544] suspend_atomic_restore+0x1e7/0x220 SS:ESP 0068:dfcadef0 Oct 11 22:11:40 pereiro kernel: [ 7.492000] <6>JFS: nTxBlock = 8192, nTxLock = 65536 -- Dave Abrahams Boost Consulting www.boost-consulting.com - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
