Source: partman-btrfs
Version: 63
Severity: wishlist
Tags: d-i
X-Debbugs-Cc: [email protected], [email protected], 
[email protected]
User: [email protected]
Usertags: amd64
User: [email protected]
Usertags: amd64

Hi,

Other checksum algorithms besides crc32c should be supported, especially 
xxhash. xxhash has better collision resistance, and according to some sources, 
it also has better performance (depending on the CPU model).

Currently, it's not possible to select a different checksum algorithm in the 
installer. Even if you pre-create the filesystem before installation, this 
doesn't work – it seems the Debian Installer kernel doesn't support it. When I 
tried this, after attempting to mount the filesystem, I found the following 
error message in dmesg: "BTRFS error (device nvme0n1p2): error allocating 
xxhash64 for checksum"

Regards,
Kai


-- System Information:
Debian Release: 13.0
  APT prefers testing-security
  APT policy: (500, 'testing-security'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.32-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), 
LANGUAGE=de:en_US
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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