When I zoom in a lot on my Galaxy Tab, on basically any page, Fennec crashes inside the GL driver. Basically any zoom way in seems to do it for me.
(All the crashes at this location are probably me.)
I can reproduce this on my Galaxy Tab in landscape orientation quite easily, but so far I've been unable to do so in portrait orientation.
I cannot reproduce this using the September 1 nightly (rev. d772dfb96ba1) but I can in the September 2 nightly (rev. 0664108eb19d).
I can also reproduce this on the Xoom (with a more informative stack than what we're getting on the Galaxy Tab): bp-39e67446-7962-4fa4-bac4-917872110907
This is a regression from Bug 683514 (which enabled the GL_EXT_unpack_subimage extension on Tegra 2 devices like the Galaxy Tab and Xoom).
Backout on inbound:
This was resolved by backing out the patch causing the regression.