Lines Matching full:kernel

4 The kernel will mark itself as 'tainted' when something occurs that might be
6 most of the time it's not a problem to run a tainted kernel; the information is
8 cause might be the event that got the kernel tainted. That's why bug reports
10 problems with an untainted kernel.
12 Note the kernel will remain tainted even after you undo what caused the taint
13 (i.e. unload a proprietary kernel module), to indicate the kernel remains not
14 trustworthy. That's also why the kernel will print the tainted state when it
15 notices an internal problem (a 'kernel bug'), a recoverable error
16 ('kernel oops') or a non-recoverable error ('kernel panic') and writes debug
25 why the kernel was tainted is shown after the Process ID ('PID:') and a shortened
28 	BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
35 You'll find a 'Not tainted: ' there if the kernel was not tainted at the
42 the kernel got tainted earlier because a proprietary Module (``P``) was loaded,
51 ``cat /proc/sys/kernel/tainted``. If that returns ``0``, the kernel is not
53 decode that number is the script ``tools/debugging/kernel-chktaint``, which your
55 ``kernel-tools``; if it doesn't you can download the script from
56 `git.kernel.org <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/tools/deb…
57 and execute it with ``sh kernel-chktaint``, which would print something like
60 	Kernel is Tainted for following reasons:
62 	 * Kernel issued warning (#9)
64 	See Documentation/admin-guide/tainted-kernels.rst in the Linux kernel or
65 	 https://www.kernel.org/doc/html/latest/admin-guide/tainted-kernels.html for
70 reason that got your kernel tainted, as in this case you can find the number
77 	$ for i in $(seq 18); do echo $(($i-1)) $(($(cat /proc/sys/kernel/tainted)>>($i-1)&1));done
83 Bit  Log  Number  Reason that got the kernel tainted
87   2  _/S       4  SMP kernel oops on an officially SMP incapable processor
92   7  _/D     128  kernel died recently, i.e. there was an OOPS or BUG
94   9  _/W     512  kernel issued warning
100  15  _/K   32768  kernel has been live patched
102  17  _/T  131072  kernel was built with the struct randomization plugin
119  2)  ``S`` if the oops occurred on an SMP kernel running on hardware that
131      unexpected page flags. This indicates a hardware problem or a kernel bug;
138  7)  ``D`` if the kernel has died recently, i.e. there was an OOPS or BUG.
142  9)  ``W`` if a warning has previously been issued by the kernel.
147  11) ``I`` if the kernel is working around a severe bug in the platform
152  13) ``E`` if an unsigned module has been loaded in a kernel supporting
157  15) ``K`` if the kernel has been live patched.
161  17) ``T`` Kernel was build with the randstruct plugin, which can intentionally
162      produce extremely unusual kernel structure layouts (even performance