[BUG]: Unhandled SIGBUS on game boot about pcsx2 HOT 12 CLOSED

@AntonyZ89 this is an arch issue see https://gitlab.freedesktop.org/drm/amd/-/issues/3343

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what pc spec ? because it works for me on ubuntu

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@Mrlinkwii
Intel Core i7-4790S
AMD Radeon R9 380 2GB

Running the vulkan-radeon driver.

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This is something with your system, or the meme distro, because nobody else can reproduce this crash.

SIGBUS is probably a misalignment exception, but we're not calling any functions that mandate alignment.

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From the small tidbit of info I've been given about this, I'm wondering if it's a libc issue with meme distro, especially since this started appearing randomly out of nowhere. FWIW, I can't reproduce it, even on arch, but I am running it in a VM, and my system also defaults to using the AVX512 memcpy implementation.

What I do know:

• The pointers and data getting passed in look sane.
• It's a SIGBUS on a memory read. The read in this case is the imgui texture data. Not an NFS share, GPU memory, etc, or something that should actually result in a SIGBUS.
• That leaves alignment exceptions. If someone can dump the value of rdi, or whatever register it's reading from on the crashing instruction (and provide a full backtrace from a debug build), I can confirm this.
• If the source register is not aligned, then it is not our bug.

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linux 6.8.9 change broke few things
https://gitlab.freedesktop.org/drm/amd/-/issues/3343 should be it

@andreicristianstroe downgrade to 6.8.8, confirmed working by another arch user

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I am indeed running 6.8.9, just tested on my laptop with a simillar software configuration and a Ryzen cpu and everything works fine.

Will try downgrading to 6.8.8 and post back.

Also, Duckstation exhibits the same problem with the same error messages.

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the isssue is about amd gpus and not specific to pcsx2 or duck, other apps crash too, you can check it for more info

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Cannot test at the initial desktop configuration atm, just did a full system upgrade on my laptop which included glibc 2.39-4 and ran pcsx2 again, no change, games still run. The laptop also has an amd gpu, vega 10. The desktop also had a full system upgrade as of 6-7 hours ago, so it should be on the same software as the laptop.

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Kernel change would explain the SIGBUS. It was actually the other way around, a write, not read, AT&T syntax trolled me (just didn't update the post).

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Same here, using Arch and Ryzen 7 5600X + RX 6600 XT, do you use a window manager? I'm using i3wm and I think this might be related but I have no clue where to go to solve it :((

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Looks like it's a problem with the kernel rather than arch specifically. Didn't try downgrading the kernel yet but I have upgraded my gpu to a rx 570, no other changes, and the problem still persists. On the amd igpu of my laptop it does not crash. None of those 2 systems have the option of rebar afaik.

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