05.09.2014 12:37, Luis R. Rodriguez пишет:
From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx> Alexander reported that on his Sony VAIO VPCZ23A4R laptop experiences long delays on boot when connected to its dock station on pre 3.9 kernels but anything after 3.9 will cause the device to not be detected at all ending with: [ 38.065673] pata_marvell 0000:1a:00.0: no available native port [ 38.065769] pata_acpi 0000:1a:00.0: no available native port
I object to this commit message, it is based on outdated information and is due to a different bug that was fixed in 3.10 as a last-minute fix. Modern kernels just experience long delays during boot.
This laptop has a Marvell 88SE6121 SATA II Controller [11ab:6121] and a BluRay writer attached. The reason for the delays are caused by SRST errors and the link being slow to respond. The pata_marvell driver is a simple libata wrapper so the real required changes need to be made on libata however not many folks are around and available anymore with intimate knowledge and experience with these devices. Alexander notes that it may be that *any* ATA BMDMA controller that fails to respond to an identify command until a reset or other device poking might suffer from similar fate, this needs to be investigated further. Using async probe the issue caused by systemd killing the driver after taking over 30 seconds on probe. [0] https://bugzilla.kernel.org/show_bug.cgi?id=59581 Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: linux-ide@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: One Thousand Gnomes <gnomes@xxxxxxxxxxxxxxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Benjamin Poirier <bpoirier@xxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: patrakov@xxxxxxxxx Reported-by: "Alexander E. Patrakov" <patrakov@xxxxxxxxx> Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxx> --- drivers/ata/pata_marvell.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c index ae9feb1..6a543b9 100644 --- a/drivers/ata/pata_marvell.c +++ b/drivers/ata/pata_marvell.c @@ -175,6 +175,7 @@ static struct pci_driver marvell_pci_driver = { .suspend = ata_pci_device_suspend, .resume = ata_pci_device_resume, #endif + .driver.async_probe = true, }; module_pci_driver(marvell_pci_driver);
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