Alan Cox wrote:
On Tue, Sep 26, 2006 at 01:29:35PM -0400, Adam Jackson wrote:
Just as an update, I'm still looking into this, it's pretty brutal. It
appears to be a bug in the kernel's VT handling code, which is making my
eyes go all crossy. Hopefully I'll have at least a hacky workaround by
the end of the day, in the meantime just disable rhgb.
Any more details and I'll look into the kernel side as I'm working on
tty and vt locking currently.
The X server is stuck in vt_waitactive(), in TASK_INTERRUPTIBLE.
Somehow it's getting onto the wait queue and then never coming off it.
Amusingly, if I try to attach with gdb or strace, I get -EPERM, the
syscall interrupts, we don't retry the VT_WAITACTIVE ioctl (which is a
bug I suppose) and X carries on loading just fine. So it feels like
there's some path where we've switched VT without updating fg_console.
- ajax
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