dmesg showing warning and this trace while loading linux kernel: WARNING: at kernel/irq/manage.c:259 enable_irq+0x54/0xc0() Hardware name: EP45-DS3LR Unbalanced enable for IRQ 16 Modules linked in: lp videobuf_dma_sg acpi_cpufreq uhci_hcd snd_pcm snd_timer r8169 parport_pc videobuf_core tveeprom nvidia(P) freq_table snd i2c_i801 jmicron(+) ide_core serio_raw pcspkr ehci_hcd usbcore mii parport sg intel_agp evdev soundcore snd_page_alloc thermal button i2c_core iTCO_wdt iTCO_vendor_support processor rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sr_mod cdrom sd_mod ahci libata scsi_mod Pid: 857, comm: modprobe Tainted: P 2.6.30-ARCH #1 Call Trace: [<ffffffff802a4d04>] ? enable_irq+0x54/0xc0 [<ffffffff8024ed71>] ? warn_slowpath_common+0x81/0xd0 [<ffffffff8025cf58>] ? msleep+0x28/0x50 [<ffffffff8024ee50>] ? warn_slowpath_fmt+0x50/0x70 [<ffffffff802a4d04>] ? enable_irq+0x54/0xc0 [<ffffffffa01b9c7a>] ? ide_probe_port+0x1da/0x7f0 [ide_core] [<ffffffff804612fc>] ? device_create+0x3c/0x60 [<ffffffffa01ba5fd>] ? ide_host_register+0x2cd/0x770 [ide_core] [<ffffffffa01c1802>] ? ide_pci_init_one+0x162/0x1b0 [ide_core] [<ffffffff803b4898>] ? ida_get_new_above+0xb8/0x230 [<ffffffff80314a17>] ? iput+0x37/0xb0 [<ffffffff8036d406>] ? sysfs_addrm_finish+0x56/0x2c0 [<ffffffff8036cd05>] ? __sysfs_add_one+0x35/0x130 [<ffffffff8036cead>] ? sysfs_add_one+0x3d/0x1a0 [<ffffffff803d3982>] ? local_pci_probe+0x22/0x40 [<ffffffff803d5164>] ? pci_device_probe+0xa4/0xd0 [<ffffffff80464208>] ? driver_probe_device+0xa8/0x1a0 [<ffffffff804643c3>] ? __driver_attach+0xc3/0xd0 [<ffffffff80464300>] ? __driver_attach+0x0/0xd0 [<ffffffff804636a8>] ? bus_for_each_dev+0x68/0xb0 [<ffffffff80462c6a>] ? bus_add_driver+0xda/0x2f0 [<ffffffffa01da000>] ? jmicron_ide_init+0x0/0x47 [jmicron] [<ffffffffa01da000>] ? jmicron_ide_init+0x0/0x47 [jmicron] [<ffffffff804647ea>] ? driver_register+0x7a/0x150 [<ffffffffa01da000>] ? jmicron_ide_init+0x0/0x47 [jmicron] [<ffffffff803d568c>] ? __pci_register_driver+0x5c/0xf0 [<ffffffff8020907b>] ? do_one_initcall+0x4b/0x1b0 [<ffffffff80272919>] ? __blocking_notifier_call_chain+0x79/0xc0 [<ffffffff802888e0>] ? sys_init_module+0xd0/0x220 [<ffffffff8020c442>] ? system_call_fastpath+0x16/0x1b ---[ end trace 5f52afe24c707bd4 ]---
From the description it seems that this is not a ACPI bug. Instead it is related with the generic IRQ management. Will you please attach the dmesg? Thanks.
Created attachment 22898 [details] Full dmesg output
will you please try the libata driver instead and see if the problem still exists?
If i disable onboard IDE controller in BIOS, i haven't this problem