[Bug 29384] Slow switch between TTY1-TTY6 with /dev/fb0 or X11 involved

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29384

--- Comment #12 from peterle@hottemptation.org 2010-08-07 08:32:03 PDT ---
Okay, let's go:
$ mkdir project; cd project/linux-2.6
$ git clone
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git linux-2.6
$ git bisect start -- drivers/gpu/drm/radeon /*thought this must be a bug in
"radeon"*/
$ git bisect good v.2.6.34
$ git bisect bad v2.6.35
Bisecting: 79 revisions left to test after this (roughly 6 steps)
[ce8a3eb20c4cb7d9e0c33e7560070688cd9066fc] drm/radeon/kms/pm: make pm spam
debug only


This told me, that are 79 patches in "radeon" and gave me the first one.
Because I am new with "git" I decided to start not in the middle (around patch
40), instead with the first patch (want to see how it works). The result is
that both bugs 29384 and 27744 are inside!

See new dmesg after resuspend:

PM: early resume of devices complete after 0.837 msecs
ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
ehci_hcd 0000:00:1a.0: setting latency timer to 64
HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
HDA Intel 0000:00:1b.0: setting latency timer to 64
HDA Intel 0000:00:1b.0: irq 29 for MSI/MSI-X
ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
ehci_hcd 0000:00:1d.0: setting latency timer to 64
pci 0000:00:1e.0: setting latency timer to 64
ahci 0000:00:1f.2: setting latency timer to 64
pci 0000:00:1f.3: PCI INT C -> GSI 18 (level, low) -> IRQ 18
radeon 0000:02:00.0: setting latency timer to 64
HDA Intel 0000:02:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
HDA Intel 0000:02:00.1: setting latency timer to 64
ath9k 0000:05:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
HDA Intel 0000:02:00.1: irq 30 for MSI/MSI-X
sd 0:0:0:0: [sda] Starting disk
[drm] Clocks initialized !
[drm] ring test succeeded in 1 usecs
radeon 0000:02:00.0: no free indirect buffer !
[drm:r600_ib_test] *ERROR* radeon: failed to get ib (-16).
[drm:evergreen_resume] *ERROR* radeon: failled testing IB (-16).
usb 2-1.5: reset high speed USB device using ehci_hcd and address 4
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: configured for UDMA/133
PM: resume of devices complete after 2312.599 msecs
Restarting tasks ... done.
video LNXVIDEO:00: Restoring backlight state
    [ pm_notifier_block : 171 ] event :4

atl1c 0000:03:00.0: irq 31 for MSI/MSI-X
ADDRCONF(NETDEV_UP): eth0: link is not ready
ADDRCONF(NETDEV_UP): wlan0: link is not ready
ath9k: Two wiphys trying to scan at the same time
ath9k: Two wiphys trying to scan at the same time
wlan0: deauthenticating from 00:1c:10:36:48:42 by local choice (reason=3)
wlan0: authenticate with 00:1c:10:36:48:42 (try 1)
wlan0: authenticated
wlan0: associate with 00:1c:10:36:48:42 (try 1)
wlan0: RX AssocResp from 00:1c:10:36:48:42 (capab=0x431 status=0 aid=1)
wlan0: associated
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: no IPv6 routers present




Error message differs, but there is the same bug!?
I added complete dmesg (bootup,suspend, resuspend).

I think the bug must somewhere else outside "drives/gpu/drm/radeon",  but
where?

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