Please file a bug for this issue, and we can take the discussion there. This list isn't really the right place for it.

Thanks.

On Wed, Nov 22, 2017 at 12:27:09AM +0100, Marco Bonardo wrote:
Is your profile local, or do you have it on a network share?

It's possible your db has some kind of corruption that causes
recursive references.
I'd first of all check it using sqlite3 and the PRAGMA integrity_check query.
If that passes (returns "ok"), I'd also try to run the Places
Maintenance from about:support.

As previously said, could also be an extension, since you are on 56
you are using legacy extensions, that can do whatever they wish with
our APIs, including some of the slow paths we removed in 57 and 58
beta.

Please let me know if you have any news, also, tracking this in a bug
could be useful, regardless of the final outcome.


On Tue, Nov 21, 2017 at 9:32 PM, Kris Maglione <kmagli...@mozilla.com> wrote:
On Tue, Nov 21, 2017 at 02:22:26PM -0500, Ted Mielczarek wrote:

On Tue, Nov 21, 2017, at 06:54 AM, Alexey Zvyagin wrote:

Hi!

I made some crashes by hands (crashfirefox.exe) in Windows 7 and in Unix
through kill -ABRT

What are the symptoms? In random moments the Firefox v56.* has only-one
core CPU 100% eating. In Windows 7 (64bit) & Linux (Ubuntu 16.04 LTE
64bit)

Reports are here:

Ubuntu OS:


https://crash-stats.mozilla.com/report/index/0b0e6273-26fb-482e-b033-c91be1171101

https://crash-stats.mozilla.com/report/index/237ae0e4-6eb2-4c8b-87e8-3c2471171101

https://crash-stats.mozilla.com/report/index/7ddfad60-8f3e-4495-a05f-5d6d21171110

https://crash-stats.mozilla.com/report/index/95468eb1-28b2-40f7-8f0c-8a7261171110

https://crash-stats.mozilla.com/report/index/cd310102-c547-486f-bbd3-0b7791171110

https://crash-stats.mozilla.com/report/index/6df179b4-721a-4440-97e5-059d21171110

Windows 7:


https://crash-stats.mozilla.com/report/index/8e172c11-2367-43b1-98f2-128251171113#allthreads


Hi Alexey,

These crashes all seem to be stuck in sqlite code querying the places
database that contains browsing history. In the Windows crash, you can
see that thread 0 is waiting on a sqlite mutex for the database, and
thread 44 is in the middle of running some sort of sqlite query, so
presumably it's holding the mutex.


These are actually all bookmark queries, and unfortunately, main-thread,
blocking bookmark queries, at that.

My best guess would also be an extension, but WebExtensions at least should
not be hitting these code paths.

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