Description of problem:
After I install a rhel5 guest on rhel7, I change the guest's video device to vga, then the guest's desktop environment can't start, I tried on rhel6, and it works well, rhel6 guest on rhel7 is ok too.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Install a rhel5 guest with GNOME desktop environment, make sure it can work well with "cirrus" type video device.
2.Shutdown rhel5 guest, and change the video device to "vga".
3.Start the rhel5 guest
4.Edit file "/etc/X11/xorg.conf", change the "Driver" under "Section 'Device'" to "vesa" like this:
5.Run command "startx" to start the guest's desktop environment.
step3, The guest will start without desktop environment.
step5, Failed to start the X server.
After step5, guest can start it's desktop environment and work well.
Please provide the /var/log/Xorg.0.log file showing the failed startup attempt.
Created attachment 757458 [details]
(II) Loading sub module "int10"
(II) LoadModule: "int10"
(II) Loading /usr/lib64/xorg/modules/libint10.so
(II) Module int10: vendor="X.Org Foundation"
compiled for 7.1.1, module version = 1.0.0
ABI class: X.Org Video Driver, version 1.0
(II) VESA(0): initializing int10
(II) VESA(0): Primary V_BIOS segment is: 0xc000
0: X(xf86SigHandler+0x71) [0x479b01]
1: /lib64/libc.so.6 [0x2adf524ef330]
2: /usr/lib64/xorg/modules/libint10.so [0x2adf54ea96d3]
3: /usr/lib64/xorg/modules/libint10.so(Mem_rb+0x18) [0x2adf54ea7b28]
4: /usr/lib64/xorg/modules/libint10.so(fetch_data_byte+0x2a) [0x2adf54eaa80a]
5: /usr/lib64/xorg/modules/libint10.so [0x2adf54eac4b2]
6: /usr/lib64/xorg/modules/libint10.so(X86EMU_exec+0x9d) [0x2adf54eba1cd]
7: /usr/lib64/xorg/modules/libint10.so(xf86ExecX86int10+0x55) [0x2adf54ea9675]
8: /usr/lib64/xorg/modules/libvbe.so(VBEExtendedInit+0x92) [0x2adf54c9b5c2]
9: /usr/lib64/xorg/modules/drivers/vesa_drv.so [0x2adf54686cd6]
10: X(InitOutput+0x9cd) [0x4642fd]
11: X(main+0x26f) [0x4335ef]
12: /lib64/libc.so.6(__libc_start_main+0xf4) [0x2adf524dc9c4]
13: X(FontFileCompleteXLFD+0x241) [0x432aa9]
Fatal server error:
Caught signal 11. Server aborting
So either this is a bug in the rhel5 vesa driver, or bad emulation in QEMU is violating some requirement in the driver causing the crash. Re-assigning to rhel5 xorg for further diagnosis
This bug/component is not included in scope for RHEL-5.11.0 which is the last RHEL5 minor release. This Bugzilla will soon be CLOSED as WONTFIX (at the end of RHEL5.11 development phase (Apr 22, 2014)). Please contact your account manager or support representative in case you need to escalate this bug.
Discussed with reporter, only vga mode would meet this issue, other types of mode works well. So it is not a block issue, agree with closing it as wontfix.
Thank you for submitting this request for inclusion in Red Hat Enterprise Linux 5. We've carefully evaluated the request, but are unable to include it in RHEL5 stream. If the issue is critical for your business, please provide additional business justification through the appropriate support channels (https://access.redhat.com/site/support).