[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
Fix had been included here: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=df00bed0fa30a6f5712 ... so closing this bug ticket now. ** Changed in: qemu Status: In Progress => Fix Released -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: Fix Released Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the "correct" fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
no I don't believe it was your fault I couldn't get the code compile even without your patch... man this sucks... i had hoped it would be upstream with 0.15 but I might have to try to compile it by myself again thanks ;) -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
Alright, I've sent a patch to qemu-devel. Let's see what happens now... -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
a it worked, just tried it with latest stable 0.15 git !!! finally you are my hero! =) -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
for which version is the last patch? also 12.3? -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
Pretty sure it was the latest Arch package: 0.14.1. Did you have trouble applying it? I can run back and make a patch against git if you can't use this. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
This is probably the source of the problem. As you say it'd be best to use chtype directly if it can be done cleanly, unfortunately it looks like it'll add a curses specific snippet in console.h, but so be it. The only other option is to add a conversion step in curses.c and give up zero-copy passing screen data to curses, which I'd like to avoid. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
How about using CONFIG_CURSES? If we --enable-curses, then we know we have curses.h and chtype. If we --disable-curses, then we don't care. Patch attached. It's a no-op if curses is disabled, and it fixes the issue on my machine with curses enabled. I had to undef the color constants from curses.h so we didn't conflict with enum color_names in console.c. ** Patch added: ifdef CONFIG_CURSES, use chtype https://bugs.launchpad.net/qemu/+bug/568614/+attachment/2195896/+files/chtype.diff -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
I just checked out the ncurses source - it looks like the type of chtype actually depends on how ncurses is configured at build time: curses.h.in: #if @cf_cv_enable_lp64@ defined(_LP64) typedef unsigned chtype; typedef unsigned mmask_t; #else typedef unsigned @cf_cv_typeof_chtype@ chtype; typedef unsigned @cf_cv_typeof_mmask_t@ mmask_t; #endif So even if Qemu targets only ncurses, we can't assume that chtype is anything in particular. In light of that, I guess this bug boils down to let's use chtype directly, which (naively) seems like it could be #ifdef'd pretty easily. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
If I remember correctly, the type is unsigned long because it needs to match chtype as declared in curses.h. On some implementations of curses it may be declared differently, we really should use the chtype type directly but console.h is also used when the use of curses was disabled in qemu config. I'm pretty sure the curses support has been tested on machines of both endianness at one point, but mostly with ncurses only. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
any news on that bug? -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/568614/+subscriptions
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
I just compiled from git and the problem persists. I will reiterate that the issue appears to be with the word size of the types used, not with endianness; see comment 4. I have not dug any further into the QEMU code to see if I find a more correct-looking solution than the quick patch I have attached to this bug. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead.
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
Hi Devin, Can you test if this bug still exists with 0.14 (or better still, a git build)? Brad -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/568614 Title: x86_64 host curses interface: spacing/garbling Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead.
[Qemu-devel] [Bug 568614] Re: x86_64 host curses interface: spacing/garbling
This patch should address the problem. I've submitted it to qemu-devel. ** Patch added: 0001-Fix-console_write_ch-on-64-bit-big-endian-hosts.patch http://launchpadlibrarian.net/49569832/0001-Fix-console_write_ch-on-64-bit-big-endian-hosts.patch ** Changed in: qemu Status: New = In Progress -- x86_64 host curses interface: spacing/garbling https://bugs.launchpad.net/bugs/568614 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. Status in QEMU: In Progress Bug description: Environment: Arch Linux x86_64, kernel 2.6.33, qemu 0.12.3 Steps to reproduce: 1. Have a host system running 64-bit Linux. 2. Start a qemu VM with the -curses flag. Expected results: Text displayed looks as it would on a real text-mode display, and VM is therefore usable. Actual results: Text displayed contains an extra space between characters, causing text to flow off the right and bottom sides of the screen. This makes the curses interface unintelligible. The attached patch fixes this problem on 0.12.3 on my installation without changing behavior on a 32-bit machine. I don't know enough of the semantics of console_ch_t to know if this is the correct fix or if there should be, say, an extra cast somewhere instead.
