On 01/14/2019 06:50 AM, Liam Proven wrote:
I have never tried headless mode and I don't have Win7 to hand any more. I can see if I can reproduce it with Win10. I am currently installing the build 1809 update in my VM. After that I will have a look, but I only have Vbox 5.22.
I think something about display rendering was a bit broken before anyway as I have not been able to get seamless mode working. It has worked for me before on other versions of Vbox, but in the last year or so, was broken on both Linux and macOS hosts.
(I'm guessing here -- but that is about the only code/change based logical guess I can come up with that matches what I'm seeing. It also explains why large block-redraws seems less effected than smaller line-by-line updates of the terminal) I don't know. :-(
This seems to be unique to --headless with windows7 (probably 10) guests. Further strace of the running process shows errors with select/read. strace outputs the following to stderr: $ cat 20190113-202935_win32_err.log strace: Process 1286 attached select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 ...<snip>... select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 futex(0x171c1b8, FUTEX_WAKE_PRIVATE, 1) = 1 read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 select(10, [9], NULL, [9], NULL) = 1 (in [9]) read(9, "\372", 1) = 1 ...<snip to end>... Will report further at the end of trouble-shooting on the vbox-users list. -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org