Yes, could you dump the IO port data from 0x2f00 to 0x2fff and send it to me, it record the base address BIOS trap? Also, could you update the latest BIOS to try this issue again? BRs Peer Chen -----Original Message----- From: Volker Armin Hemmann [mailto:volker.armin.hemmann@xxxxxxxxxxxxxxx] Sent: Tuesday, April 15, 2008 5:13 AM To: Peer Chen Cc: Jeff Garzik; Tejun Heo; linux-kernel@xxxxxxxxxxxxxxx; linux-ide@xxxxxxxxxxxxxxx; Kuan Luo Subject: Re: 2.6.24.X: SATA/AHCI related boot delay. - not with 2.6.24.3 Hi, On Montag, 14. April 2008, Peer Chen wrote: > Volker, > I mean add msleep(x) function between writel(HOST_AHCI_EN, mmio + HOST_CTL) > and readl(mmio + HOST_CTL) cause we ever met a bug that writing data to the > AHCI BAR5 but need a delay to get correct read back value. But forget it, > looks like it's not the same case here. Which mode do you set(ahci or > non-raid) when you encountered the issue that the AHCI_EN bit failed to > set? I found we have workaround for AHCI_EN bit setting in our Bios > programming guide for AHCI mode. you mean this? [ 0.363828] ------------[ cut here ]------------ [ 0.363828] WARNING: at drivers/ata/ahci.c:645 ahci_init_one+0x190/0xa3a() [ 0.363828] Modules linked in: [ 0.363828] Pid: 1, comm: swapper Not tainted 2.6.25-rc8 #2 [ 0.363828] [ 0.363828] Call Trace: [ 0.363828] [<ffffffff8022c5a5>] warn_on_slowpath+0x51/0x63 [ 0.363832] [<ffffffff80220061>] __ioremap+0x8/0x197 [ 0.363872] [<ffffffff803921f4>] pci_conf1_read+0xb2/0xbd [ 0.363911] [<ffffffff802f3316>] pcim_iomap_release+0x0/0x2c [ 0.363950] [<ffffffff802f3316>] pcim_iomap_release+0x0/0x2c [ 0.363989] [<ffffffff803471a9>] devres_find+0x4b/0x65 [ 0.364028] [<ffffffff8036e4cd>] ahci_init_one+0x190/0xa3a [ 0.364067] [<ffffffff802af837>] sysfs_addrm_finish+0x1d/0x209 [ 0.364107] [<ffffffff80284014>] ifind+0x34/0x8d [ 0.364145] [<ffffffff802af54e>] sysfs_find_dirent+0x1b/0x2f [ 0.364184] [<ffffffff802eb75d>] ida_get_new_above+0xf0/0x180 [ 0.364223] [<ffffffff802af837>] sysfs_addrm_finish+0x1d/0x209 [ 0.364263] [<ffffffff802b0378>] sysfs_create_link+0xb6/0x102 [ 0.364303] [<ffffffff802f8664>] pci_device_probe+0x4c/0x72 [ 0.364342] [<ffffffff80344c48>] driver_probe_device+0xb5/0x132 [ 0.364381] [<ffffffff80344ddb>] __driver_attach+0x6f/0xaf [ 0.364419] [<ffffffff80344d6c>] __driver_attach+0x0/0xaf [ 0.364458] [<ffffffff80344d6c>] __driver_attach+0x0/0xaf [ 0.364498] [<ffffffff8034400a>] bus_for_each_dev+0x44/0x6f [ 0.364538] [<ffffffff802a9b57>] proc_match+0x23/0x2d [ 0.364576] [<ffffffff80344876>] bus_add_driver+0xae/0x1f4 [ 0.364614] [<ffffffff8034500a>] driver_register+0x59/0xce [ 0.364654] [<ffffffff802f88a5>] __pci_register_driver+0x4a/0x7d [ 0.364701] [<ffffffff804e56b8>] kernel_init+0x14f/0x2b9 [ 0.364740] [<ffffffff8020be98>] child_rip+0xa/0x12 [ 0.364779] [<ffffffff804e5569>] kernel_init+0x0/0x2b9 [ 0.364817] [<ffffffff8020be8e>] child_rip+0x0/0x12 [ 0.364854] [ 0.364891] ---[ end trace ea9d541113ecaf1e ]--- this happened with AHCI mode set in bios, pci=nomsi as kernel boot parameter and kernel 2.6.25-rc8. Something similar looking happened without pci=nomsi, but in that case I could not scroll back to even make a picture because of the kernel panic (rootfs not found). Glück Auf Volker ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ----------------------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
