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I don’t know yet, but I will let you know as soon as I can. On Nov 14, 2013, at 10:18 PM, Kostya Serebryany <kcc at google.com> wrote: > On Fri, Nov 15, 2013 at 10:16 AM, Bob Wilson <bob.wilson at apple.com> wrote: >> No, not that I am aware of. > > So, if my commits did indeed trigger the failures it could be > something like binary size change that caused diff...

Yes. I'm seeing this as well and it predates Kostya's change. Shows up as memory corruption or double free on Linux. On Nov 14, 2013 10:46 PM, "Alexey Samsonov" <samsonov at google.com> wrote: > FYI I've seen what looked like a memory corruption in (private) Clang > bootstrap process long before Kostya's changes we...

No, not that I am aware of. On Nov 14, 2013, at 10:15 PM, Kostya Serebryany <kcc at google.com> wrote: > On Fri, Nov 15, 2013 at 10:14 AM, Bob Wilson <bob.wilson at apple.com> wrote: >> The bit code file produced by the stage 1 compiler for one of the files in the clang driver is corrupt and causes the linker for stage 2 to crash. > &gt...

FYI I've seen what looked like a memory corruption in (private) Clang bootstrap process long before Kostya's changes were submitted. I hope I'll have the chance to investigate it soon. On Fri, Nov 15, 2013 at 10:20 AM, Bob Wilson <bob.wilson at apple.com> wrote: > I don’t know yet, but I will let you know as soon as I can. > > On Nov 14, 2013, at 10:18 PM, Kostya Serebryany &lt...

...701, so I have reapplied that along with the compiler-rt changes. Somehow we need to get to the bottom of the problem. If you can reproduce it, please help!! On Nov 14, 2013, at 11:01 PM, Eric Christopher <echristo at gmail.com> wrote: > Yes. I'm seeing this as well and it predates Kostya's change. Shows up as memory corruption or double free on Linux. > > On Nov 14, 2013 10:46 PM, "Alexey Samsonov" <samsonov at google.com> wrote: > FYI I've seen what looked like a memory corruption in (private) Clang bootstrap process long before Kostya's chang...

The bit code file produced by the stage 1 compiler for one of the files in the clang driver is corrupt and causes the linker for stage 2 to crash. On Nov 14, 2013, at 10:13 PM, Kostya Serebryany <kcc at google.com> wrote: > What are the symptoms? > > On Fri, Nov 15, 2013 at 9:37 AM, Bob Wilson <bob.wilson at apple.com> wrote: >> I’m waiting to see if this fixes the buildbots. Unfortunately, because they were failing all day, there are a bunch of oth...

On Feb 7, 2012, at 4:04 PM, Kostya Serebryany wrote: > On Tue, Feb 7, 2012 at 3:46 PM, John McCall <rjmccall at apple.com> wrote: > On Feb 7, 2012, at 2:07 PM, Kostya Serebryany wrote: > > Slightly formatted/commented patch. > > WDYT? > > This seems to work fine, except that reading a field from a cons...

...ilures it could be something like binary size change that caused different code alignment or some such and which triggered a latent memory bug somewhere else. It's already late evening for you now. Will you have a chance to reapply changes today? --kcc > > On Nov 14, 2013, at 10:15 PM, Kostya Serebryany <kcc at google.com> wrote: > >> On Fri, Nov 15, 2013 at 10:14 AM, Bob Wilson <bob.wilson at apple.com> wrote: >>> The bit code file produced by the stage 1 compiler for one of the files in the clang driver is corrupt and causes the linker for stage 2 to cras...

...clang build, so it will take a while longer. I don’t have any other useful information at this point, and I share your puzzlement about how your changes could possibly break the compiler. My only hypothesis is some sort of memory corruption. I will keep you posted. On Nov 14, 2013, at 9:22 PM, Kostya Serebryany <kcc at google.com> wrote: > Also, when are you planing to "reapply the changes or help debug"? > > On Fri, Nov 15, 2013 at 9:15 AM, Kostya Serebryany <kcc at google.com> wrote: >> On Fri, Nov 15, 2013 at 7:26 AM, Bob Wilson <bob.wilson at apple....

On Tue, Feb 7, 2012 at 4:55 PM, John McCall <rjmccall at apple.com> wrote: > On Feb 7, 2012, at 4:04 PM, Kostya Serebryany wrote: > > On Tue, Feb 7, 2012 at 3:46 PM, John McCall <rjmccall at apple.com> wrote: > >> On Feb 7, 2012, at 2:07 PM, Kostya Serebryany wrote: >> > Slightly formatted/commented patch. >> > WDYT? >> >> This seems to work fine, except tha...

...lt;bob.wilson at apple.com> wrote: > The bit code file produced by the stage 1 compiler for one of the files in the clang driver is corrupt and causes the linker for stage 2 to crash. Is AddressSanitizer involved in any of the stages of the LTO build? > > On Nov 14, 2013, at 10:13 PM, Kostya Serebryany <kcc at google.com> wrote: > >> What are the symptoms? >> >> On Fri, Nov 15, 2013 at 9:37 AM, Bob Wilson <bob.wilson at apple.com> wrote: >>> I’m waiting to see if this fixes the buildbots. Unfortunately, because they were failing all day, there...

On Feb 7, 2012, at 4:56 PM, Kostya Serebryany wrote: > > > On Tue, Feb 7, 2012 at 4:55 PM, John McCall <rjmccall at apple.com> wrote: > On Feb 7, 2012, at 4:04 PM, Kostya Serebryany wrote: >> On Tue, Feb 7, 2012 at 3:46 PM, John McCall <rjmccall at apple.com> wrote: >> On Feb 7, 2012, at 2:07 P...

On Mon, Jun 18, 2012 at 6:30 PM, Joerg Sonnenberger <joerg at britannica.bec.de > wrote: > On Mon, Jun 18, 2012 at 05:52:49PM +0400, Kostya Serebryany wrote: > > On Mon, Jun 18, 2012 at 5:43 PM, Joerg Sonnenberger < > joerg at britannica.bec.de > > > wrote: > > > > > On Mon, Jun 18, 2012 at 05:19:11PM +0400, Kostya Serebryany wrote: > > > > On Mon, Jun 18, 2012 at 5:07 PM, Joerg Sonnenber...

...ke a while longer. > > I don’t have any other useful information at this point, and I share your puzzlement about how your changes could possibly break the compiler. My only hypothesis is some sort of memory corruption. > > I will keep you posted. > > On Nov 14, 2013, at 9:22 PM, Kostya Serebryany <kcc at google.com> wrote: > >> Also, when are you planing to "reapply the changes or help debug"? >> >> On Fri, Nov 15, 2013 at 9:15 AM, Kostya Serebryany <kcc at google.com> wrote: >>> On Fri, Nov 15, 2013 at 7:26 AM, Bob Wilson <b...

On Fri, Nov 15, 2013 at 7:26 AM, Bob Wilson <bob.wilson at apple.com> wrote: > Hi Kostya, > > Thanks for the heads-up on this. I haven’t had a chance to look into the > details yet, but it looks like these patches may be breaking our > bootstrapped LTO build. Our buildbots have been failing all day, and we’re > still trying to figure out the problem. I’m going to spec...

...by Scudo (thus: some code duplication). An early plan was to move to our own googlesource repository (or the like), but Chandler suggested we stay in compiler-rt, as a separate directory that could be a slice of the new git monorepo. This appeared to be acceptable to everybody involved (Chandler, Kostya S., Petr, Roland, Julia), and is now the plan of record. Once the standalone version is in, the non-standalone Scudo will likely be deprecated, although this part hasn’t been formalized yet. We recognize the full implications of the decision in terms of feature sharing with sanitizer_common (or la...

> On Sep 21, 2016, at 1:25 PM, Kostya Serebryany <kcc at google.com> wrote: > > > > On Wed, Sep 21, 2016 at 12:58 PM, Mehdi Amini <mehdi.amini at apple.com <mailto:mehdi.amini at apple.com>> wrote: > >> On Sep 21, 2016, at 12:56 PM, Kostya Serebryany <kcc at google.com <mailto:kcc at goo...

On Tue, Feb 12, 2019 at 10:45 AM Jonas Devlieghere <jonas at devlieghere.com> wrote: > Hi Kostya, > > I remember seeing this in the past. IIRC it was sufficient to install > recommonmark with `pip install recommonmark`. > installing this on my machine won't help the bots that build the docs, right? > > Cheers, > Jonas > > On Tue, Feb 12, 2019 at 10:17 AM Kosty...

...filing.c to > disable writing the output, since the current implementation is pretty > naive. > > If it turns out as you suggest, and the different kinds of instrumentation > serve different purposes, then I think it would make sense to do both. > > On Feb 18, 2014, at 3:13 AM, Kostya Serebryany <kcc at google.com> wrote: > > Regarding performance, I've made a simple coverage with counters and > compared it with AsanCoverage. > > AsanCoverage produces code like this: > mov 0xe86cce(%rip),%al > test %al,%al > je 48b4a0 # to call __sanit...

On Mon, Jun 18, 2012 at 06:44:57PM +0400, Kostya Serebryany wrote: > On Mon, Jun 18, 2012 at 6:30 PM, Joerg Sonnenberger <joerg at britannica.bec.de > > wrote: > > > On Mon, Jun 18, 2012 at 05:52:49PM +0400, Kostya Serebryany wrote: > > > On Mon, Jun 18, 2012 at 5:43 PM, Joerg Sonnenberger < > > joerg at br...