MattJackson
a35596d2d1
Direct-SATA BU40N + Dune Part Two UHD live testing exposed that the v0.17.3 single-shot SCSI READ path matched 0/22 of the small bad- sector LBAs that dd if=/dev/sr0 recovers on the same drive. This release closes that gap and fixes adjacent bugs silently capping recovery. - /dev/sr0 pread fallback in Drive::read (Linux only): on SCSI READ Err, fall back to posix_fadvise(DONTNEED) + pread() against the corresponding block device. Kernel sr_mod runs ~5 internal retries with no per-attempt mid-layer escalation overhead — the mechanism behind dd's recovery advantage. End-to-end byte verification confirms the fallback path returns real disc data. - Disc::patch per-range watchdog fix: MAX_RANGE_SECS was breaking 'outer (one slow range killed the entire patch). Now skips to the next range. Pre-fix patch died after 4 sectors of range 1 of 47. - Per-sector range budget: range_budget = sectors × 25 s, capped at 1800 s. Replaces the flat 180 s/range that was unfair to medium ranges and pointlessly generous to single-sector ones. - consecutive_failures resets per range. The wedge-exit detector is for stuck-on-one-range, not many-small-ranges-with-one-fail-each. - Reverted inline 5× retry experiment (was hurting: each retry paid kernel SCSI escalation overhead). Restored READ_RECOVERY_TIMEOUT_MS to 60 s. The kernel-auto-retry pattern is now provided by sr0 fallback. Empirical: pass 1 recovered 94.6 MB / 11 s of main title (33 sr0 saves). Pass 2 added 0.6 MB. Remaining ~233 MB on the test disc appears physically unrecoverable on this hardware.
45 lines
1.1 KiB
TOML
45 lines
1.1 KiB
TOML
[package]
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name = "libfreemkv"
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version = "0.17.5"
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edition = "2024"
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rust-version = "1.86"
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license = "AGPL-3.0-only"
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description = "Open source raw disc access library for optical drives"
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repository = "https://github.com/freemkv/libfreemkv"
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keywords = ["bluray", "uhd", "optical", "scsi", "disc"]
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categories = ["hardware-support", "multimedia"]
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[dependencies]
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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sha1 = "0.10"
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sha2 = "0.10"
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aes = "0.8"
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cbc = "0.1"
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flate2 = "1"
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num-bigint = "0.4"
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num-traits = "0.2"
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num-integer = "0.1"
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rand = "0.8"
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cmac = "0.7"
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zip = { version = "2", default-features = false, features = ["deflate"] }
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base64 = "0.22.1"
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# Trace-level instrumentation for Disc::copy + SgIoTransport::execute. Permitted
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# under project docs ("Acceptable strings: debug/trace logging"). Consumers (autorip)
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# wire a tracing subscriber and pipe events into the JSONL debug log.
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tracing = "0.1"
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[target.'cfg(target_os = "linux")'.dependencies]
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libc = "0.2"
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[target.'cfg(target_os = "macos")'.dependencies]
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libc = "0.2"
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[dev-dependencies]
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tempfile = "3"
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[[bench]]
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name = "sgio_read"
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harness = false
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