linux-kernel - [2.6.26-rc1] Output to console stops when booted without 'vga=791'

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Date:	Mon, 5 May 2008 19:51:34 +0200
From:	Frans Pop <elendil@...net.nl>
To:	linux-kernel@...r.kernel.org
Cc:	linux-fbdev-devel@...ts.sourceforge.net, adaplas@...il.com
Subject: [2.6.26-rc1] Output to console stops when booted without 'vga=791'

I have fbcon and vesafb compiled into my kernels and normally boot with
'vga=791'. While testing another regression, I removed that parameter, but
that resulted in all output to VT1 stopping during the boot, just before the
initrd gets loaded.

At first I thought this was #9310, but the "freeze" now *also* happens if
the config option FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is *not* set, so this
is a new regression, possibly on top of #9310.

The console works fine if I completely disable the framebuffer by booting
with 'video=vfb:off'.

(I've also updated #9310 with this info.)

Cheers,
FJP

Point where the freeze happens:
[...]
Console: colour VGA+ 80x25
console [tty0] enabled
[...]
pnp: the driver 'system' has been registered
system 00:01: iomem range 0xf0000000-0xf3ffffff has been reserved
system 00:01: iomem range 0xfed13000-0xfed13fff has been reserved
system 00:01: iomem range 0xfed14000-0xfed17fff has been reserved
system 00:01: iomem range 0xfed18000-0xfed18fff has been reserved
system 00:01: iomem range 0xfed19000-0xfed19fff has been reserved
system 00:01: iomem range 0xfed1c000-0xfed1ffff has been reserved
system 00:01: iomem range 0xfed20000-0xfed3ffff has been reserved
system 00:01: iomem range 0xfed45000-0xfed99fff has been reserved
system 00:01: iomem range 0xc0000-0xdffff has been reserved
system 00:01: iomem range 0xe0000-0xfffff could not be reserved
system 00:01: driver attached
system 00:06: ioport range 0x500-0x53f has been reserved
system 00:06: ioport range 0x400-0x47f has been reserved
system 00:06: ioport range 0x680-0x6ff has been reserved
system 00:06: driver attached
system 00:07: iomem range 0xfed40000-0xfed44fff has been reserved
system 00:07: driver attached
system 00:08: driver attached
PCI: Bridge: 0000:00:1c.0
  IO window: 1000-1fff
  MEM window: 0x90100000-0x902fffff
  PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.2
  IO window: disabled.
  MEM window: 0x90400000-0x904fffff
  PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.3
  IO window: disabled.
  MEM window: 0x90500000-0x905fffff
  PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.4
  IO window: disabled.
  MEM window: 0x90600000-0x906fffff
  PREFETCH window: disabled.
PCI: Bridge: 0000:00:1c.5
  IO window: disabled.
  MEM window: 0x90700000-0x907fffff
  PREFETCH window: disabled.
PCI: Bridge: 0000:00:1e.0
  IO window: disabled.
  MEM window: 0x90000000-0x900fffff
  PREFETCH window: disabled.
<<< Freeze happens here >>>
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1c.0 to 64
ACPI: PCI Interrupt 0000:00:1c.2[C] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:00:1c.2 to 64
ACPI: PCI Interrupt 0000:00:1c.3[D] -> GSI 19 (level, low) -> IRQ 19
PCI: Setting latency timer of device 0000:00:1c.3 to 64
ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 17 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:00:1c.4 to 64
ACPI: PCI Interrupt 0000:00:1c.5[B] -> GSI 16 (level, low) -> IRQ 16
PCI: Setting latency timer of device 0000:00:1c.5 to 64
PCI: Setting latency timer of device 0000:00:1e.0 to 64
NET: Registered protocol family 2
IP route cache hash table entries: 65536 (order: 7, 524288 bytes)
TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
TCP: Hash tables configured (established 262144 bind 65536)
TCP reno registered
NET: Registered protocol family 1
checking if image is initramfs...<7>Switched to high resolution mode on CPU 1
Switched to high resolution mode on CPU 0
 it is
Freeing initrd memory: 3840k freed
[...]

View attachment "config-2.6.26-rc1-pat" of type "text/plain" (59959 bytes)