Re: Trying to crack the Firefox crashing issue

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Hi Damien,

> On May 11, 2025, at 5:00 PM, Damien Stewart <hypexed@yahoo.com.au> wrote:
> 
> On 11/5/25 1:20 am, Damien Stewart wrote:
>> Comparing with var_p0=var_p0@entry=262000 and var_p1=2016478208 p1 looks corrupted. There could some possibility of endian corruption. I reversed it and got $41578 or 267640 which is within range of 262000 in p0. Why p0 looks fine only p1 doesn't I don't know. Being register based means PPC has less chance of endian errors if registers are used to pass parameters. So if a code block could pass all generic data in registers, process it natively, then return result in registers, there would be less chance of endian errors. I've also read originally WASM was endian agnostic or processed in the native endian of host CPU, and was designed that way, but later they decided to change it to be non portable and hack it to be little endian only because that's defacto standard endian now days. Or something like that.
> 
> Quoting myself here. I got it! I've got evidence it's endian corruption. :-)

Since you’re already working on this issue, please take the time to file an upstream bug report.

And if you come up with a patch, please forward it upstream. I don’t have the time and nerves to work on this issue.

Adrian