Crash-id :
Uploaded Crash Report ID dcc8a05734c1666a (Local Crash ID: 679a0b49-b9dc-465e-84f5-609e1e5cca6a)
Crash report captured on Monday, December 18, 2017 at 10:52:40 AM, uploaded on Monday, December 18, 2017 at 10:52:44 AM

This is an Regression issue broken in M-65, below is the bisect info:

Good Build: 65.0.3295.0
Bad Build: 65.0.3296.0

You are probably looking for a change made after 524533 (known good), but no later than 524534 (first known bad).

CHANGELOG URL:
The script might not always return single CL as suspect as some perf builds might get missing due to failure.

https://chromium.googlesource.com/chromium/src/+log/a834c680bf3c367c4b788aec6e2f5ec6b73ce795..6c35041e27b9bd82ac5b6ac56fa5814841d0829c

Suspect: https://chromium.googlesource.com/chromium/src/+/6c35041e27b9bd82ac5b6ac56fa5814841d0829c

Note:
1. This is an Windows (7,8,8.1,10) OS specific issue
2. Issue is not reproducible on Mac and Linux OS

Deleted: Actual Video.mp4 1.9 MB

	Actual Video.mp4 1.9 MB View Download

Deleted: Expected Video.mp4 1.3 MB

	Expected Video.mp4 1.3 MB View Download

Note: Issue is seen for all PDF files

Another steps to reproduce
1. Launch chrome, navigate to NTP
2. Press Ctrl+P, print preview appears
3. Click on 'Print using system dialog...(Ctrl+Shift+P)' (Print dialog opens)
4. Now click on Cancel button and observe

Deleted: Actual Video.mp4 888 KB

	Actual Video.mp4 888 KB View Download

Issue is also seen on latest canary #65.0.3298.0

Stack Trace for the provided crash id:
---------------------------------------
Thread 0 (id: 5292) CRASHED [EXCEPTION_ILLEGAL_INSTRUCTION @ 0x00007fffeee1bdd0 ] MAGIC SIGNATURE THREAD
Stack Quality97%Show frame trust levels
0x00007fffeee1bdd0	(chrome.dll -agc_audio_stream.h:78 )	media::AgcAudioStream<media::AudioInputStream>::~AgcAudioStream
0x00007ffff0c97860	(chrome.dll -print_job.cc:194 )	printing::PrintJob::Cancel()
0x00007ffff0c97e37	(chrome.dll -print_job.cc:299 )	printing::PrintJob::OnPdfPageConverted(int,float,std::unique_ptr<printing::MetafilePlayer,std::default_delete<printing::MetafilePlayer> >)
0x00007ffff0c983bd	(chrome.dll -bind_internal.h:343 )	base::internal::Invoker<base::internal::BindState<void (printing::PrintJob::*)(int, float, std::unique_ptr<printing::MetafilePlayer,std::default_delete<printing::MetafilePlayer> >),scoped_refptr<printing::PrintJob> >,void (int, float, std::unique_ptr<printing::MetafilePlayer,std::default_delete<printing::MetafilePlayer> >)>::Run
0x00007ffff0cc1adb	(chrome.dll -pdf_to_emf_converter.cc:519 )	printing::`anonymous namespace'::PdfConverterImpl::OnPageDone
0x00007fffefb2cdad	(chrome.dll -pdf_to_emf_converter.mojom.cc:586 )	printing::mojom::PdfToEmfConverter_ConvertPage_ForwardToCallback::Accept(mojo::Message *)
0x00007fffeedfbd6b	(chrome.dll -interface_endpoint_client.cc:413 )	mojo::InterfaceEndpointClient::HandleValidatedMessage(mojo::Message *)
0x00007fffeedfb39e	(chrome.dll -multiplex_router.cc:879 )	mojo::internal::MultiplexRouter::ProcessIncomingMessage(mojo::internal::MultiplexRouter::MessageWrapper *,mojo::internal::MultiplexRouter::ClientCallBehavior,base::SequencedTaskRunner *)
0x00007fffeedfae49	(chrome.dll -multiplex_router.cc:604 )	mojo::internal::MultiplexRouter::Accept(mojo::Message *)
0x00007fffeedf9907	(chrome.dll -connector.cc:444 )	mojo::Connector::ReadSingleMessage(unsigned int *)
0x00007fffeedf9788	(chrome.dll -connector.cc:474 )	mojo::Connector::ReadAllAvailableMessages()
0x00007fffeedf9653	(chrome.dll -simple_watcher.cc:275 )	mojo::SimpleWatcher::OnHandleReady(int,unsigned int,mojo::HandleSignalsState const &)
0x00007fffeed21296	(chrome.dll -task_annotator.cc:53 )	base::debug::TaskAnnotator::RunTask(char const *,base::PendingTask *)
0x00007fffeed20b7b	(chrome.dll -message_loop.cc:391 )	base::MessageLoop::RunTask(base::PendingTask *)
0x00007fffeed20496	(chrome.dll -message_loop.cc:454 )	base::MessageLoop::DoWork()
0x00007fffeee384bc	(chrome.dll -message_pump_win.cc:173 )	base::MessagePumpForUI::DoRunLoop()
0x00007fffeed30f64	(chrome.dll -message_pump_win.cc:56 )	base::MessagePumpWin::Run(base::MessagePump::Delegate *)
0x00007fffeed1fe74	(chrome.dll -run_loop.cc:130 )	base::RunLoop::Run()
0x00007fffef107d7f	(chrome.dll -chrome_browser_main.cc:1945 )	ChromeBrowserMainParts::MainMessageLoopRun(int *)
0x00007fffef107b76	(chrome.dll -browser_main_loop.cc:1195 )	content::BrowserMainLoop::RunMainMessageLoopParts()
0x00007fffef107b24	(chrome.dll -browser_main_runner.cc:140 )	content::BrowserMainRunnerImpl::Run()
0x00007fffeed187ac	(chrome.dll -browser_main.cc:46 )	content::BrowserMain(content::MainFunctionParams const &)
0x00007fffeed18639	(chrome.dll -content_main_runner.cc:427 )	content::RunNamedProcessTypeMain(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,content::MainFunctionParams const &,content::ContentMainDelegate *)
0x00007fffeed184e9	(chrome.dll -content_main_runner.cc:710 )	content::ContentMainRunnerImpl::Run()
0x00007fffeed058c2	(chrome.dll -main.cc:456 )	service_manager::Main(service_manager::MainParams const &)
0x00007fffeed0536f	(chrome.dll -content_main.cc:19 )	content::ContentMain(content::ContentMainParams const &)
0x00007fffeed01b40	(chrome.dll -chrome_main.cc:128 )	ChromeMain
0x00007ff6baff3519	(chrome.exe -main_dll_loader_win.cc:199 )	MainDllLoader::Launch(HINSTANCE__ *,base::TimeTicks)
0x00007ff6baff169c	(chrome.exe -chrome_exe_main_win.cc:230 )	wWinMain
0x00007ff6bb0cb0d2	(chrome.exe -exe_common.inl:283 )	__scrt_common_main_seh
0x00007ff822a28101	(KERNEL32.DLL + 0x00018101 )	BaseThreadInitThunk
0x00007ff822f3c5b3	(ntdll.dll + 0x0005c5b3 )	RtlUserThreadStart

1)This crash is first started on 64.0.3282.14 and seeing single instances.
2)This crash only seen on Windows>Browser and rank position not generated yet.

Links to the list of builds:
----------------------------
https://goto.google.com/pfftt

Adding release blocker for this issue. please remove if not the case.

Thank You!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1dfa656c7d805661c3fd59f4411be72d814e821a

commit 1dfa656c7d805661c3fd59f4411be72d814e821a
Author: Jay Civelli <jcivelli@chromium.org>
Date: Mon Dec 18 21:51:56 2017

Fix crasher when canceling print.

Now that PdfConverterImpl is not ref counted anymore, it needs to
make sure it did not get deleted after invoking a client callback.

Bug:  795637 
Change-Id: I61812357f4f7f1960af5cf46256043ee453612ba
Reviewed-on: https://chromium-review.googlesource.com/832928
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#524813}
[modify] https://crrev.com/1dfa656c7d805661c3fd59f4411be72d814e821a/chrome/browser/printing/pdf_to_emf_converter.cc

Would you mind merging the above fix to 3298 branch. We are planning to build an RC from this branch.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3b1e1f46a2177de26e7617616ab014cc0cb7ea7a

commit 3b1e1f46a2177de26e7617616ab014cc0cb7ea7a
Author: Jay Civelli <jcivelli@chromium.org>
Date: Mon Dec 18 23:19:02 2017

Fix crasher when canceling print.

Now that PdfConverterImpl is not ref counted anymore, it needs to
make sure it did not get deleted after invoking a client callback.

Bug:  795637 
Change-Id: I61812357f4f7f1960af5cf46256043ee453612ba
Reviewed-on: https://chromium-review.googlesource.com/832928
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Jay Civelli <jcivelli@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#524813}(cherry picked from commit 1dfa656c7d805661c3fd59f4411be72d814e821a)
Reviewed-on: https://chromium-review.googlesource.com/833307
Reviewed-by: Krishna Govind <govind@chromium.org>
Cr-Commit-Position: refs/branch-heads/3298@{#3}
Cr-Branched-From: 6586a208880a70a00856529493741971ecfea5c2-refs/heads/master@{#524617}
[modify] https://crrev.com/3b1e1f46a2177de26e7617616ab014cc0cb7ea7a/chrome/browser/printing/pdf_to_emf_converter.cc

Update:
Able to reproduce the issue on Dev 65.0.3298.3 and latest canary 65.0.3299.0 in Windows (7,8,8.1,10) OS

Deleted: Actual Video.mp4 939 KB

	Actual Video.mp4 939 KB View Download

There are only 3 reports of of this crash in 65.0.3298.3, hence no an RBD.

Reopening for further investigation

jcivelli@: Please take a look as this is one of the top browser crash(currently #2) on the latest Windows chrome canary(65.0.3299.0).

Link to the list of the builds with this magic signature and crashes:
https://goto.google.com/hgajp

Other crash reports with similar magic signature: Issue 796008

No crashes seen on crash server post chrome version: 65.0.3300.0, This looks to be fixed by the fix landed in Issue 796008. Removing the Blocker for now.

Not seeing more crashers, closing the bug.

Just to update:

media::AgcAudioStream<media::AudioInputStream>::~AgcAudioStream

Still seeing crash instances on latest dev & beta:

65.0.3298.3	89.32%	2668(from 1496 clients)	-dev
64.0.3282.39	0.30%	9  (From 9 clients)	-Beta

Link to the list of builds:
-------------------------
https://crash.corp.google.com/browse?q=product.name%3D%27Chrome%27%20AND%20custom_data.ChromeCrashProto.ptype%3D%27browser%27%20AND%20custom_data.ChromeCrashProto.magic_signature_1.name%3D%27media%3A%3AAgcAudioStream%3Cmedia%3A%3AAudioInputStream%3E%3A%3A~AgcAudioStream%27&sql_dialect=googlesql&ignore_case=false&enable_rewrite=true&omit_field_name=&omit_field_value=&omit_field_opt=%3D#productversion:1000

jcivelli@,Could you please merge the same fix to latest dev & beta?

Thanks in advance..!

This is currently top#2 browser crash on latest Chrome Dev i.e., 65.0.3298.3 based on above comment reopening the bug.

Sorry missed that this was fixed as part of another Issue#796008(Thanks Amit) where Lei has fixed both issues#796008 and  795637 .

Apologize for the confusion.