On Thursday 02 August 2007 10:05:44 Joachim Deguara wrote: > On Wednesday 01 August 2007 23:00:23 Michael Chan wrote: > > On Wed, 2007-08-01 at 10:47 -0700, Michael Chan wrote: > > The problem is that memory enable and bus master were not set in PCI > > register 4 after resume. This also explains the register access > > failures. Found it! I did the instrumentation and found pci_restore was not being called. Why, because this code failed: printk(KERN_INFO "tg3_resume: entered\n"); if (!netif_running(dev)) return 0; printk(KERN_INFO "tg3_resume: before restore\n"); Bad dmesg: [ 0.581236] PM: Writing back config space on device 0000:07:00.0 at offset 4 (was 4, writing d0200004) [ 0.581259] tg3_resume: entered [ 0.581276] PM: Writing back config space on device 0000:08:09.0 at offset f (was c001ff, writing 1c0010b) why is this, oh damn it is because I was calling openSUSE's "powersave -u" and not s2ram directly. powersave is disabling the network and the tg3 will not restore the pci device like this! right? here is a good dmesg with by calling s2ram: [ 0.577085] PM: Writing back config space on device 0000:07:00.0 at offset 4 (was 4, writing d0200004) [ 0.577108] tg3_resume: entered [ 0.577109] tg3_resume: before restore [ 0.577140] PM: Writing back config space on device 0000:08:04.0 at offset c (was 0, writing ffff0000) [ 0.577171] PM: Writing back config space on device 0000:08:04.0 at offset 1 (was 2b00000, writing 2b00006) [ 0.577304] tg3_resume: after set_power_state [ 0.579119] tg3: eth0: Link is down. [ 0.786266] ata2: SATA link down (SStatus 0 SControl 310) [ 0.848176] tg3_resume: after tg3_restart_hw [ 0.848265] PM: Writing back config space on device 0000:08:09.0 at offset f (was c001ff, writing 1c0010b) Seams like even if powersave shuts down the network that the device should still work after a suspend to ram, so who is at fault here? -Joachim - 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
