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...but GUI is completely unresponsive. Running the following system OS: Fedora 25 64 bit Arch: 64-bit Graphics Card: GeForce GTX 660 Kernel: 4.10.15-200.fc25.x86_64 Nouveau Driver: xorg-x11-drv-nouveau-1.0.15-1.fc25.x86_64 Get the following Errors from dmesg [May28 11:56] nouveau 0000:01:00.0: gr: TRAP ch 6 [023f718000 systemd-logind[757]] [ +0.000011] nouveau 0000:01:00.0: gr: GPC1/PROP trap: 00000020 [RT_HEIGHT_OVERRUN] x = 1888, y = 1060, format = 2a, storage type = 0 [ +0.000884] nouveau 0000:01:00.0: gr: TRAP ch 6 [023f718000 systemd-logind[757]] [ +0.000010] nouveau 0000:01:00.0: gr: GPC...

Hi, I''m running Xen 4.2.0 with Linux kernel 3.7.0 and I''m seeing a flood of these messages in xen dmesg: (XEN) traps.c:3156: GPF (0060): ffff82c480159247 -> ffff82c4802170e4 (XEN) traps.c:3156: GPF (0060): ffff82c480159247 -> ffff82c4802170e4 (XEN) traps.c:3156: GPF (0060): ffff82c480159247 -> ffff82c4802170e4 (XEN) traps.c:3156: GPF (0060): ffff82c480159247 -> ffff82c4802170e4 (XEN) traps.c:3156: GP...

On 04/03/2020 21:45, Jim Ingham via llvm-dev wrote: > As you have seen, different machine architectures do different things after hitting a trap. On x86_64, the trap instruction is executed, and then you stop, so the PC is left after the stop. On arm64, when execution halts the pc is still pointing at the trap instruction. > > I don't think lldb should be in the business of telling systems how they should report stops, especial...

Hi all, My code: > temp<-outer(release.days,collection.days,'-') > temp<-ifelse(temp>=0,NA,temp) > release.diff<-apply(temp,2,max,na.rm=TRUE) works for one trap and does what I want. That is, it determines the time difference between the collection date of a trap and date of parasitoid release immediately before it, excluding releases that occurred on the same day as the collection. The code above, however, does not give the correct values - those that I...

...nel.org/?p=libs/klibc/klibc.git;a=commit;h=e6ebc6f4137090ec4ce858bdb0fe674774173e57 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Thu, 2 Oct 2014 19:49:48 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Fri, 25 Jan 2019 02:57:21 +0000 [klibc] [TRAP] Make sure evalskip is zero before running traps As it is if dotrap is called with evalskip set to a nonzero value, it'll try to execute any set traps. The result is that the first command in the first set trap will be executed while the rest of the trap will be silently ignored due to evalsk...

...g/?p=libs/klibc/klibc.git;a=commit;h=9d16e7c25d87057eae0b8bbbd512dd768f409e01 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Thu, 2 Oct 2014 19:49:48 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Sat, 28 Mar 2020 21:42:54 +0000 [klibc] dash: [TRAP] Make sure evalskip is zero before running traps [ dash commit d28c13e7119a605ef152a4310e9415dc7ae9b8f3 ] As it is if dotrap is called with evalskip set to a nonzero value, it'll try to execute any set traps. The result is that the first command in the first set trap will be executed while t...

Hi, I''m doing some testing on Ubuntu 12.04 Alpha. All sounds comes out as static on the Dom0 system. (I can PCI passthrough the audio card to a DomU and that works). Native sound works fine. Linux kronos 3.2.0-8-generic-pae #15-Ubuntu SMP Wed Jan 11 15:34:57 UTC 2012 i686 i686 i386 GNU/Linux Here is the "ubuntu-bug audio" generated report:

We don't actually need the Guest handlers mapped to avoid double fault, just the stack pages. Thanks to Zach for confirming. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- drivers/lguest/interrupts_and_traps.c | 26 +------------------------- drivers/lguest/lg.h | 2 +- drivers/lguest/page_tables.c | 6 +++--- 3 files changed, 5 insertions(+), 29 deletions(-) =================================================================== --- a/drivers/lguest/interrupts_and_trap...

We don't actually need the Guest handlers mapped to avoid double fault, just the stack pages. Thanks to Zach for confirming. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- drivers/lguest/interrupts_and_traps.c | 26 +------------------------- drivers/lguest/lg.h | 2 +- drivers/lguest/page_tables.c | 6 +++--- 3 files changed, 5 insertions(+), 29 deletions(-) =================================================================== --- a/drivers/lguest/interrupts_and_trap...

In these test functions, when a test fails, the bash ‘trap’ command causes the cleanup function to be called. However bash does not annul or cancel the traps when cleanup is called, so at the end of the cleanup function when ‘exit’ is called, cleanup is called recursively. Avoid this by cancelling the traps at the top of the cleanup function. Also an ext...

...mit;h=d87680c971e35a218ca10941c6014ae9861e6a55 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Mon, 6 Oct 2014 10:39:47 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Fri, 25 Jan 2019 02:57:21 +0000 [klibc] [BUILTIN] Exit without arguments in a trap should use status outside traps POSIX now requires that exit without arguments in a trap should return the last command status prior to executing traps. This patch implements this behaviour. Signed-off-by: Herbert Xu <herbert at gondor.apana.org.au> Signed-off-by: Ben Hutchings <ben at...

...85a5a4a9d96c0c680597432f1e4454718e7ad101 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Mon, 6 Oct 2014 10:39:47 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Sat, 28 Mar 2020 21:42:54 +0000 [klibc] dash: [BUILTIN] Exit without arguments in a trap should use status outside traps [ dash commit da30b4b787695fbf77e5d941ff350a66ca572bcb ] POSIX now requires that exit without arguments in a trap should return the last command status prior to executing traps. This patch implements this behaviour. Signed-off-by: Herbert Xu <herbert at gondor...

On Sun, Sep 6, 2009 at 3:19 PM, Kenneth Uildriks<kennethuil at gmail.com> wrote: > It would be unfortunate in a way if "this instruction can trap and go > there" is taken to mean "if this instruction has no effect other than > a possible trap, the instruction and the trapping behavior *must* be > preserved". What exactly would the semantics be if the instruction *might* trap? I somehow can't imagine it being usef...

...as well, as they basically are the same.] Ah, I think I understand now what poison is for. Adds are defined to not have side-effects, so the dependence rule is needed so the optimizer is allowed to exploit undefined behavior. Is this correct? I forgot to mention in my original mail that our trapping arithmetic operations are fully speculable. This means that the trap won't happen until the result is e.g. stored to memory. A bit like poison values in hardware. Something is still unclear to me: while, according to the examples in LangRef, a volatile store has undefined behavior wh...

Several instruction set architectures include arithmetic operations that can trap on overflow, or support this feature with a separate trap-on-overflow-flag instruction (such as the x86 INTO instruction). I am adding a back-end to the Open Dylan compiler to generate LLVM IR. The original back-end, which generates x86 machine code, makes use of the INTO instruction, and the runt...

...lt;kennethuil at gmail.com> wrote: > On Sun, Sep 6, 2009 at 5:32 PM, Eli Friedman<eli.friedman at gmail.com> wrote: >> On Sun, Sep 6, 2009 at 3:19 PM, Kenneth Uildriks<kennethuil at gmail.com> wrote: >>> It would be unfortunate in a way if "this instruction can trap and go >>> there" is taken to mean "if this instruction has no effect other than >>> a possible trap, the instruction and the trapping behavior *must* be >>> preserved". >> >> What exactly would the semantics be if the instruction *might* trap?...

...rnel.org/?p=libs/klibc/klibc.git;a=commit;h=ffba488a87578bfe0704dd906466fc64a88ff488 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Mon, 6 Jun 2016 19:52:43 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Fri, 25 Jan 2019 02:57:21 +0000 [klibc] trap: Implement POSIX.1-2008 trap reset behaviour Jonathan Perkin submitted a patch to fix the behaviour of trap when the first argument is an integer. Currently it is treated as a command while POSIX requires it to be treated as a signal. This patch is based on his idea but instead of adding an extr...

...rg/?p=libs/klibc/klibc.git;a=commit;h=b9c84707e06be25579b9402f740c763ed79cbdde Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Mon, 6 Jun 2016 19:52:43 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Sat, 28 Mar 2020 21:42:54 +0000 [klibc] dash: trap: Implement POSIX.1-2008 trap reset behaviour [ dash commit 551215bb2f05b6ed0a639e1a20b88906ddd7ef9b ] Jonathan Perkin submitted a patch to fix the behaviour of trap when the first argument is an integer. Currently it is treated as a command while POSIX requires it to be treated as a signal. Thi...

...eturn; + } + } + printk("unknown value 0x%08x", value); +} +#define nouveau_print_enum_names(val, namelist) \ + nouveau_print_enum_names_((val), (namelist), ARRAY_SIZE(namelist)) static int nouveau_graph_chid_from_grctx(struct drm_device *dev) @@ -427,14 +452,16 @@ nouveau_graph_dump_trap_info(struct drm_device *dev, const char *id, struct drm_nouveau_private *dev_priv = dev->dev_private; uint32_t nsource = trap->nsource, nstatus = trap->nstatus; - NV_INFO(dev, "%s - nSource:", id); - nouveau_print_bitfield_names(nsource, nsource_names); - printk(", nSt...

...t;h=c61b2da2ec3e5c4472c1a6c64e7025e5d19e5508 Author: Herbert Xu <herbert at gondor.apana.org.au> AuthorDate: Mon, 6 Oct 2014 21:51:26 +0800 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Fri, 25 Jan 2019 02:57:21 +0000 [klibc] [BUILTIN] Return without arguments in a trap should use status outside traps POSIX now requires that return without arguments in a trap should return the last command status prior to executing traps. This patch implements this behaviour. Incidentally this also changes the behaviour of return without arguments in a loop conditional to use t...