Browser crashes regularly on vexpress with KitKat

[Tixy (Jon Medhurst)]

Browser keeps crashing on KitKat when I try to use it, e.g. by typing a search term into the Google home page or entering a web address (linaro.org) into the address bar.

logcat (attached) seems to show different triggers for the crashes: e.g.

E/chromium( 3169): [ERROR:aw_autofill_manager_delegate.cc(144)] Not implemented reached in virtual void android_webview::AwAutofillManagerDelegate::UpdateAutofillPopupDataListValues(const std::vector<std::basic_string<short unsigned int, base::string16_char_traits> >&, const std::vector<std::basic_string<short unsigned int, base::string16_char_traits> >&)
F/libc ( 3169): Fatal signal 11 (SIGSEGV) at 0xe28db008 (code=1), thread 3202 (android.browser)

E/browser ( 3300): Console: Uncaught TypeError: Cannot read property 'style' of null http://widgets.digg.com/buttons.js:8
F/libc ( 3300): Fatal signal 11 (SIGSEGV) at 0xe28db008 (code=1), thread 3334 (android.browser)

This bug has been observed on all vexpress KitKat builds I've used and on both TC2 and A9.
A specific built tested was the 13.11 release candidate: https://android-build.linaro.org/builds/~linaro-android/vexpress-linaro-13.11-release/#build=2

[Tixy (Jon Medhurst) (tixy)]

Looks like this bug is being triggered by kernel commit 28256d612726a28a8 (ARM: cacheflush: split user cache-flushing into interruptible chunks) whch went into Linux 3.12 - though the real bug may very well be in the Chrome browser.

This issue was raised on the ARM Linux list in this tread: http://lists.infradead.org/pipermail/linux-arm-kernel/2013-December/216265.html

[Tixy (Jon Medhurst) (tixy)]

The patch titled 'ARM: 7917/1: cacheflush: correctly limit range of memory region being flushed' is the fix in linux-linaro and is also heading to the mainline kernel.

[Naresh Kamboju (naresh-kamboju)]

I have not noticed this bug on latest LSK builds.

[Naresh Kamboju (naresh-kamboju)]

As per the confirmation from tixy and as well as this bug not re-produced on latest Linux linaro and LSK Android builds.
The attached patch (in comment #8) committed and released in latest builds.
Marking this bug as fix released.