bcachefs
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koverstreet
All Source games crash (Portal, Portal 2, CS:GO)
Portal, Portal 2, or CS:GO all crash during the loading screen. They work fine when moved to an external drive (that's not formatted with bcachefs). I noticed that all 3 of these games use the Source engine, and none of them even give an error message when crashing.
Version
Whatever linux-tkg uses (https://raw.githubusercontent.com/Frogging-Family/linux-tkg/master/linux-tkg-patches/6.3/0008-6.3-bcachefs.patch)
Not sure how to get the commit hash from the patch file (or if it's even in there), but the patch was created on May 27 (so maybe https://github.com/koverstreet/bcachefs/commit/cdf3463f377012b85cfcb2e3774f8953f52a793f?)
Generic info
bcachefs fs usage:
Filesystem: e7bede19-e744-4635-9914-c8e14b8ba169
Size: 2299971260928
Used: 136042778624
Online reserved: 598016
Data type Required/total Devices
reserved: 1/0 [] 33722368
btree: 1/1 [sda] 636485632
btree: 1/1 [nvme0n1p3] 966787072
user: 1/1 [sda] 126199541760
cached: 1/1 [nvme0n1p3] 5964948992
hdd.hdd1 (device 0): sda rw
data buckets fragmented
free: 0 3563818
sb: 3149824 7 520192
journal: 4294967296 8192
btree: 636485632 2274 555745280
user: 126199541760 241167 242363904
cached: 0 0
parity: 0 0
stripe: 0 0
need_gc_gens: 0 0
need_discard: 0 0
erasure coded: 0 0
capacity: 2000398843904 3815458
ssd.ssd1 (device 1): nvme0n1p3 rw
data buckets fragmented
free: 0 928901
sb: 3149824 7 520192
journal: 3902799872 7444
btree: 966787072 3007 609746944
user: 0 0
cached: 5964948992 13491
parity: 0 0
stripe: 0 0
need_gc_gens: 0 0
need_discard: 0 4
erasure coded: 0 0
capacity: 499569917952 952854
bcachefs show-super:
External UUID: e7bede19-e744-4635-9914-c8e14b8ba169
Internal UUID: ce54cbed-cf8c-4d05-9d33-0fff6cc491c7
Device index: 1
Label:
Version: snapshot_trees
Oldest version on disk: snapshot_trees
Created: Tue May 30 16:59:05 2023
Sequence number: 43
Superblock size: 4592
Clean: 0
Devices: 2
Sections: members,replicas_v0,disk_groups,clean,journal_v2,counters
Features: zstd,reflink,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,extents_above_btree_updates,btree_updates_journalled,reflink_inline_data,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes
Compat features: alloc_info,alloc_metadata,extents_above_btree_updates_done,bformat_overflow_done
Options:
block_size: 4.00 KiB
btree_node_size: 256 KiB
errors: continue [ro] panic
metadata_replicas: 1
data_replicas: 1
metadata_replicas_required: 1
data_replicas_required: 1
encoded_extent_max: 64.0 KiB
metadata_checksum: none [crc32c] crc64 xxhash
data_checksum: none [crc32c] crc64 xxhash
compression: none lz4 gzip [zstd]
background_compression: [none] lz4 gzip zstd
str_hash: crc32c crc64 [siphash]
metadata_target: none
foreground_target: ssd
background_target: hdd
promote_target: ssd
erasure_code: 0
inodes_32bit: 1
shard_inode_numbers: 1
inodes_use_key_cache: 1
gc_reserve_percent: 8
gc_reserve_bytes: 0 B
root_reserve_percent: 0
wide_macs: 0
acl: 1
usrquota: 0
grpquota: 0
prjquota: 0
journal_flush_delay: 1000
journal_flush_disabled: 0
journal_reclaim_delay: 100
journal_transaction_names: 1
nocow: 0
members (size 120):
Device: 0
UUID: ddc849e8-166d-4e54-a445-1014f61b5f1c
Size: 1.82 TiB
Bucket size: 512 KiB
First bucket: 0
Buckets: 3815458
Last mount: Tue May 30 22:13:59 2023
State: rw
Label: hdd1 (1)
Data allowed: journal,btree,user
Has data: journal,btree,user,cached
Discard: 0
Freespace initialized: 1
Device: 1
UUID: 9235ab08-69a4-4e00-91e9-8e1484b8c77c
Size: 465 GiB
Bucket size: 512 KiB
First bucket: 0
Buckets: 952854
Last mount: Tue May 30 22:13:59 2023
State: rw
Label: ssd1 (3)
Data allowed: journal,btree,user
Has data: journal,btree,user,cached
Discard: 1
Freespace initialized: 1
Kernel bugs
I am about to go to sleep, will recompile the kernel and check dmesg tomorrow (and update this issue)
The original Portal seems to work now after a kernel update, but Portal 2 and CS:GO are still broken
I can confirm this is happening on bcachefs without other kernel patches. bcachefs commit be1251eac68916279a396baff00e93607463e7bb
Portal2 crashes on launch when stored on my bcachefs. Then I moved the game files to an ext4 partition and it worked fine. Moved back to bcachefs and it is broken again.
This is almost certainly some weird bug with the Source engine, rather than a problem with bcachefs itself.
And besides, because Source is closed-source, Valve is the only one who can debug this.
Note: I also tested with a fresh bcachefs in a 50GB loop disk, and the same thing happens.
