Hi, To make my box (Asus L5D, x86_64) resume from RAM, I have to unload all of the ACPI-related modules and the ohci_hcd module before the suspend. Also, I can't reload the ohci_hcd module after the resume, because if I try, the system crashes with the appended trace. Greetings, Rafael irq 11: nobody cared (try booting with the "irqpoll" option) Call Trace: [<ffffffff8020b145>] show_trace+0xa5/0x330 [<ffffffff8020b6b5>] dump_stack+0x15/0x20 [<ffffffff80263b48>] __report_bad_irq+0x38/0x90 [<ffffffff80263dca>] note_interrupt+0x22a/0x280 [<ffffffff80264a00>] handle_level_irq+0xf0/0x140 [<ffffffff8020ccdd>] do_IRQ+0x11d/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf DWARF2 unwinder stuck at ret_from_intr+0x0/0xf Leftover inexact backtrace: <IRQ> [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8023389a>] __do_softirq+0x5a/0xf0 [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8020cb4d>] do_softirq+0x3d/0xb0 [<ffffffff8023370e>] irq_exit+0x4e/0x60 [<ffffffff8020ccf5>] do_IRQ+0x135/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf <EOI><1>Unable to handle kernel paging request at ffffffff82800000 RIP: [<ffffffff8020b362>] show_trace+0x2c2/0x330 PGD 203027 PUD 205027 PMD 0 Oops: 0000 [1] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:02.0/usb2/serial CPU 0 Modules linked in: ohci_hcd ehci_hcd usbserial snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device af_packet ip6t_REJECT xt_tcpudp bcm43xx ieee8 0211softmac pcmcia firmware_class ieee80211 ipt_REJECT ieee80211_crypt xt_state ohci1394 ieee1394 iptable_mangle iptable_nat ip_nat yenta_soc ket iptable_filter rsrc_nonstatic pcmcia_core ip6table_mangle ip_conntrack ip_tables skge ip6table_filter ip6_tables x_tables snd_intel8x0 sn d_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc i2c_nforce2 i2c_core parport_pc ipv6 lp parport dm_mod Pid: 4908, comm: modprobe Tainted: G M 2.6.18-rc2-mm1 #20 RIP: 0010:[<ffffffff8020b362>] [<ffffffff8020b362>] show_trace+0x2c2/0x330 RSP: 0018:ffffffff8061ecb0 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff8061ed90 R08: 0000000000000002 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff827ffffd R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00002b41c0925b00(0000) GS:ffffffff808c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffffff82800000 CR3: 0000000056fc0000 CR4: 00000000000006e0 Process modprobe (pid: 4908, threadinfo ffff810056a46000, task ffff81005b88f040) Stack: 0000000000000000 ffffffff880a6580 000000000000000a ffffffff8066a240 ffffffff8061eeb0 0000000000000022 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff8020b6b5>] dump_stack+0x15/0x20 [<ffffffff80263b48>] __report_bad_irq+0x38/0x90 [<ffffffff80263dca>] note_interrupt+0x22a/0x280 [<ffffffff80264a00>] handle_level_irq+0xf0/0x140 [<ffffffff8020ccdd>] do_IRQ+0x11d/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf DWARF2 unwinder stuck at ret_from_intr+0x0/0xf Leftover inexact backtrace: <IRQ> [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8023389a>] __do_softirq+0x5a/0xf0 [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8020cb4d>] do_softirq+0x3d/0xb0 [<ffffffff8023370e>] irq_exit+0x4e/0x60 [<ffffffff8020ccf5>] do_IRQ+0x135/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf <EOI><1>Unable to handle kernel paging request at ffffffff82800000 RIP: [<ffffffff8020b362>] show_trace+0x2c2/0x330 PGD 203027 PUD 205027 PMD 0 Oops: 0000 [2] PREEMPT last sysfs file: /devices/pci0000:00/0000:00:02.0/usb2/serial CPU 0 Modules linked in: ohci_hcd ehci_hcd usbserial snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device af_packet ip6t_REJECT xt_tcpudp bcm43xx ieee8 0211softmac pcmcia firmware_class ieee80211 ipt_REJECT ieee80211_crypt xt_state ohci1394 ieee1394 iptable_mangle iptable_nat ip_nat yenta_soc ket iptable_filter rsrc_nonstatic pcmcia_core ip6table_mangle ip_conntrack ip_tables skge ip6table_filter ip6_tables x_tables snd_intel8x0 sn d_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc i2c_nforce2 i2c_core parport_pc ipv6 lp parport dm_mod Pid: 4908, comm: modprobe Tainted: G M 2.6.18-rc2-mm1 #20 RIP: 0010:[<ffffffff8020b362>] [<ffffffff8020b362>] show_trace+0x2c2/0x330 RSP: 0018:ffffffff8061e958 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffffff8061ea38 R08: 0000000000000002 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff827ffffd R13: 0000000000000000 R14: ffffffff8061ec08 R15: 0000000000000000 FS: 00002b41c0925b00(0000) GS:ffffffff808c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: ffffffff82800000 CR3: 0000000056fc0000 CR4: 00000000000006e0 Process modprobe (pid: 4908, threadinfo ffff810056a46000, task ffff81005b88f040) Stack: 0000000000000000 ffffffff880a6580 000000000000000a ffffffff8066a240 ffffffff8061eeb0 0000000000000022 0000000000000000 0000000000000000 0000000000000001 0000000000000002 0000000000000000 0000000000000000 Call Trace: [<ffffffff8020b4be>] _show_stack+0xee/0x100 [<ffffffff8020b55a>] show_registers+0x8a/0x110 [<ffffffff8020b75f>] __die+0x9f/0xf0 [<ffffffff8021db61>] do_page_fault+0x7c1/0x8f0 [<ffffffff8020a659>] error_exit+0x0/0x96 DWARF2 unwinder stuck at error_exit+0x0/0x96 Leftover inexact backtrace: <IRQ> [<ffffffff8020b362>] show_trace+0x2c2/0x330 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf [<ffffffff8020b6b5>] dump_stack+0x15/0x20 [<ffffffff80263b48>] __report_bad_irq+0x38/0x90 [<ffffffff80263dca>] note_interrupt+0x22a/0x280 [<ffffffff80262c28>] handle_IRQ_event+0x58/0x70 [<ffffffff80264a00>] handle_level_irq+0xf0/0x140 [<ffffffff8020ccdd>] do_IRQ+0x11d/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8023389a>] __do_softirq+0x5a/0xf0 [<ffffffff8020ab82>] call_softirq+0x1e/0x28 [<ffffffff8020cb4d>] do_softirq+0x3d/0xb0 [<ffffffff8023370e>] irq_exit+0x4e/0x60 [<ffffffff8020ccf5>] do_IRQ+0x135/0x140 [<ffffffff8020a23d>] ret_from_intr+0x0/0xf <EOI><1>Unable to handle kernel paging request at ffffffff82800000 RIP: [<ffffffff8020b362>] show_trace+0x2c2/0x330 PGD 203027 PUD 205027 PMD 0 - 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