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Message-ID: <19f34abd0802230948n3b98b7d2kd67ca9c2f8fbbd47@mail.gmail.com> Date: Sat, 23 Feb 2008 18:48:10 +0100 From: "Vegard Nossum" <vegard.nossum@...il.com> To: "Jeff Garzik" <jgarzik@...ox.com>, linux-ide@...r.kernel.org, "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org> Subject: ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) Hi, I am experiencing a strange problem with 2.6.23.15-137.fc8 (Fedora 8) kernel. Everything works fine, but if I provide the "nosmp" option to the kernel, I get some (S)ATA errors and the system does not boot. Here is a screenshot: http://folk.uio.no/vegardno/DSCF2543.JPG Handwritten summary: scsi0 : ahci scsi1 : ahci ata1: SATA max UDMA/133 cmd 0xf884c100 ctl 0x00000000 bmdma 0x000... ata2: SATA max UDMA/133 cmd 0xf884c180 ctl 0x00000000 bmdma 0x000... ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata1.00: qc timeout (cmd 0xec) ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) ata1: port is slow to respond, please be patient (Status 0x80) ata1: COMRESET failed (errno=-16) ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ... I don't see the connection between (no-)smp and ata. Something with interrupt routing/IPI, missing irq ack? Booting another !SMP kernel works fine. The problem also exists in 2.6.24-rc2. Kind regards, Vegard Nossum -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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