Wgpu: assertion failed: blocks <= MAX_BLOCKS_PER_CHUNK as u64

[rukai]

I only had enough time to test the new changes on my project, I'll try to get a repro together when I get the chance.
This is occurring in the same code that I reported as working in https://github.com/gfx-rs/wgpu/pull/197

thread 'main' panicked at 'assertion failed: blocks <= MAX_BLOCKS_PER_CHUNK as u64', /home/rubic/.cargo/registry/src/github.com-1ecc6299db9ec823/rendy-memory-0.2.0/src/allocator/dynamic.rs:552:9
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:71
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:59
             at src/libstd/panicking.rs:197
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:211
   4: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:474
   5: std::panicking::begin_panic
   6: rendy_memory::allocator::dynamic::Chunk<B>::from_block
   7: rendy_memory::allocator::dynamic::DynamicAllocator<B>::alloc_from_entry
   8: rendy_memory::allocator::dynamic::DynamicAllocator<B>::alloc_block
   9: <rendy_memory::allocator::dynamic::DynamicAllocator<B> as rendy_memory::allocator::Allocator<B>>::alloc
  10: rendy_memory::heaps::Heaps<B>::allocate
  11: wgpu_native::device::device_create_buffer
  12: wgpu_device_create_buffer_mapped
  13: brawllib_rs::renderer::draw_frame
  14: brawllib_rs::renderer::render_gif
  15: rukaidata_website::gif::generate
  16: rukaidata_website::main
  17: std::rt::lang_start::{{closure}}
  18: std::panicking::try::do_call
             at src/libstd/rt.rs:49
             at src/libstd/panicking.rs:293
  19: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:85
  20: std::rt::lang_start_internal
             at src/libstd/panicking.rs:272
             at src/libstd/panic.rs:388
             at src/libstd/rt.rs:48
  21: main
  22: __libc_start_main
  23: _start
Illegal instruction (core dumped)

Examples work fine.

[kvark]

@omni-viral any hints?
@rukai thank you for filing the bug! Your project seems to be complex enough to discover a whole lot of issues :) :+1:
Could you try running with "RUST_LOG=rendy_memory=trace"?

[rukai]

sure out.txt

[zakarumych]

This assert is wrong, block allocated for chunk can be bigger than requested.
I'll patch asap

[grovesNL]

@omni-viral is this fixed by https://github.com/amethyst/rendy/commit/7ef31996d9bfd5632ced157e07dc4748b9d08d54 ?

[rukai]

Yes, it is fixed now in rendy master but not released yet.

[rukai]

Fixed in rendy 0.3