Description of problem: The HP Proliant systems have an option to use the serial console through the vsp (virtual serial port). This hangs on the latest rawhide 2.6.29-* kernels. I am seeing this on a ProLiant DL365 G5 but I imagine it will be most if not all Proliants when used in this way. I will try to do some testing to find out what other systems are affected. Version-Release number of selected component (if applicable): kernel-2.6.29.1-54.fc11.x86_64 How reproducible: 100% Steps to Reproduce: 1. boot a system set up for VSP console with console=ttyS0 2. 3. Actual results: Console output hangs until a key is pressed. As keys are pressed more output is generated but it is completely unusable as a console. Expected results: Additional info:
Looks like this is the TXEN bug checking not working right again. I added an option to the serial driver to force skipping the check like is done automatically for some Intel e1000 serial ports. Try adding '8250.skip_txen_test=1' to the boot options in kernel-2.6.29.1-83.fc11 or later.
Success! Yes, just booted 2.6.29.1-85.fc11.x86_64 with 8250.skip_txen_test=1 and the serial console works properly now. Is there some info I can provide to help figure out a fix? I am more than happy to do some digging on this. thanks, - Doug
The PCI IDs for the affected devices need to be added to pci_serial_quirks[] in drivers/serial/8250_pci.c like this example for an Intel board that has the same problem: { .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_82573L_SOL, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, .setup = skip_tx_en_setup, }, And I guess I should submit the patch to add the parameter so there's a workaround for devices that aren't in the table.
Problem is the ilo vsp doesn't report itself as a PCI device. I will dig through the code and see if there is a way to do the same sort of quirk for it.
This bug appears to have been reported against 'rawhide' during the Fedora 11 development cycle. Changing version to '11'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
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Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.