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.. _skiboot-4.1:
===========
skiboot 4.1
===========
Skiboot 4.1 was released 10th December 2014. It was a release where more
development transitioned to the open source mailing list rather than internal
mailing lists.
Changes include:
- We now build with -fstack-protector and -Werror
- Stack checking extensions when built with STACK_CHECK=1
- Reduced stack usage in some areas, -Wstack-usage=1024 now.
- Some functions could use 2kb stack, now all are <1kb
- Unsafe libc functions such as sprintf() have been removed
- Symbolic backtraces
- expose skiboot symbol map to OS (via device-tree)
- removed machine check interrupt patching in OPAL
- occ/hbrt: Call stopOCC() for implementing reset OCC command from FSP
- occ: Fix the low level ACK message sent to FSP on receiving {RESET/LOAD}_OCC
- hardening to errors of various FSP code
- fsp: Avoid NULL dereference in case of invalid class_resp bits-
abort if device tree parsing fails
- FSP: Validate fsp_msg in fsp_queue_msg
- fsp-elog: Add various NULL checks
- Finessing of when to use error log vs prerror()
- More i2c work
- Can now run under Mambo simulator (see external/mambo/skiboot.tcl)
(commonly known as "POWER8 Functional Simulator")
- Document skiboot versioning scheme
- opal: Handle more TFAC errors.
- TB_RESIDUE_ERR, FW_CONTROL_ERR and CHIP_TOD_PARITY_ERR
- ipmi: populate FRU data
- rtc: Add a generic rtc cache
- ipmi/rtc: use generic cache
- Error Logging backend for bmc based machines
- PSI: Drive link down on HIR
- occ: Fix clearing of OCC interrupt on remote fix
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