↓
 

Adventures With Linux ™

Linux Technologies and Fun Times..

  • Home
  • About the Author…
  • Copyright and Trademarks..

Monthly Archives: February 2018

IA64 – Updated to 4.16-rc3..

Adventures With Linux ™ Posted on February 26, 2018 by RGFebruary 26, 2018

Just updated the HP RX2600 to Kernel 4.16-rc3, and apart from an odd quirk at compile time, all went OK.. ………….. Building modules, stage 2. MODPOST 98 modules GZIP arch/ia64/hp/sim/boot/vmlinux.gz File “./arch/ia64/scripts/unwcheck.py”, line 19 print “Usage: %s FILE” % sys.argv[0] ^ SyntaxError: Missing parentheses in call to ‘print’ make: [arch/ia64/Makefile:78: unwcheck] Error 1 (ignored) ……………… Despite this, … Continue reading →

Posted in compilation, IA64, Itanium, kernel, Linux | Tagged boots ok, compile quirk, hp rx2600, ia64, kernel 4.16-rc3 | 2 Replies

Kernel – 4.16-rc3 Released, and Still no NVIDIA Fix?

Adventures With Linux ™ Posted on February 26, 2018 by RGFebruary 26, 2018

Kernel 4.16-rc3 is out, and brief details of post-rc2 changes are here:  http://lkml.iu.edu/hypermail/linux/kernel/1802.3/00500.html I still cannot find any solution proposed for the ‘Unknown symbol swiotlb_map_sg_attrs‘ error with the latest NVIDIA drivers, despite posting brief details on the Developers Forum over a week ago.. Robert Gadsdon.   February 26, 2018. … Continue reading →

Posted in kernel, Linux, NVIDIA | Tagged 4.16-rc3, kernel, linux, no fix yet, nvidia, released, swiotlb_map_sg_attrs | 2 Replies

Kernel – 4.16-rc1 – OK with VMware 14.1.1, Breaks NVIDIA?..

Adventures With Linux ™ Posted on February 11, 2018 by RGFebruary 11, 2018

Kernel 4.16-rc1 is out, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/1802.1/02325.html VMware 14.1.1 is OK, and NVIDIA 384.111 and 390.25 both compile OK, but then fail to load/run: ………… modprobe: ERROR: could not insert ‘nvidia’: Unknown symbol in module, or unknown parameter (see dmesg) dmesg: [ 2142.352238] nvidia: Unknown symbol swiotlb_map_sg_attrs (err 0) Comparing kernel 4.15.x compiled source … Continue reading →

Posted in kernel, Linux, NVIDIA, VMware | Tagged kernel 4.16-rc1, nvidia 384.111 and 390.25, released, swiotlb_map_sg_attrs, unknown symbol, vmware 14.1.1 ok | 1 Reply

Kernel – GCC and ‘Retpoline’..

Adventures With Linux ™ Posted on February 1, 2018 by RGFebruary 1, 2018

The recent summary of Kernel 4.15 mentioned the test for ‘compliant’ versions of GCC which fully support the retpoline mitigation, but only gave an example of non-compliance: With GCC 7.2: ~]$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2  Vulnerable: Minimal generic ASM retpoline I re-created Fedora (Rawhide) GCC 7.3.1 for Fedora 27, and it gives the following, after Kernel 4.15 compilation/boot: ~]$ … Continue reading →

Posted in compilation, gcc, Intel, kernel, Linux, Performance, retpoline | Tagged 7.3.1, backport, gcc, kernel, linux, mitigation, retpoline, spectre2 | Leave a reply
Original content © Robert Gadsdon 2013
↑