> A few releases ago, alipm got disabled on alpha because there were > reports of CS20 systems freezing. > Since then, another i2c controller has been added, tsciic. > On CS20 systems, the i2c bus at tsciic sports both the usual spdmem > information, and an lmenv(4) sensors chip. > Unfortunately, when the lmenv driver is enabled, the CS20 quickly > freezes hard, with both GENERIC and GENERIC.MP. > Until the cause for this is understood, I'd suggest disabling tsciic > (or lmenv, but this will cause a noisy lmenv probe signature to be > output in dmesg) in order to make CS20 (and likely DS20L) usable again.
Per prodding from mlarkin@, I've been testing the current 6.2 snapshots and the freezes are no longer seen, with either UP or MP kernels. Given all the locking churning over the last few months, this might have been a temporary bug which got fixed since.
