Gentoo Archives: gentoo-user

From: John Covici <covici@××××××××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] kernel bad scheduling from idle thread
Date: Tue, 13 Oct 2020 07:26:20
Message-Id: m3pn5msi27.wl-covici@ccs.covici.com
1 Hi. I am getting a very bad problem on my new kernel that I did after
2 my last update. It gave me the following sequence over and over for a
3 while, and then stopped with the messages, but the system crashed. I
4 then went back to my old kernel which had been working for more than a
5 month and got a couple of the same traces, but I hope its stopped, so
6 I can write this message. A google search finds nothing relevant.
7
8 Here is what I get:
9
10 Oct 13 02:34:40 ccs.covici.com kernel: bad: scheduling from the idle
11 thread!
12 Oct 13 02:34:40 ccs.covici.com kernel: CPU: 5 PID: 0 Comm: swapper/5
13 Tainted: P W O 5.4.69-gentoo #1
14 Oct 13 02:34:40 ccs.covici.com kernel: Hardware name: Supermicro Super
15 Server/X11SCA-W, BIOS 1.2 12/05/2019
16 Oct 13 02:34:40 ccs.covici.com kernel: Call Trace:
17 Oct 13 02:34:40 ccs.covici.com kernel: dump_stack+0x71/0x98
18 Oct 13 02:34:40 ccs.covici.com kernel: dequeue_task_idle+0x1f/0x28
19 Oct 13 02:34:40 ccs.covici.com kernel: __schedule+0x167/0x5d6
20 Oct 13 02:34:40 ccs.covici.com kernel: schedule_idle+0x2a/0x33
21 Oct 13 02:34:40 ccs.covici.com kernel: do_idle+0x1d0/0x1f2
22 Oct 13 02:34:40 ccs.covici.com kernel: cpu_startup_entry+0x1d/0x1f
23 Oct 13 02:34:40 ccs.covici.com kernel: start_secondary+0x17b/0x198
24 Oct 13 02:34:40 ccs.covici.com kernel: secondary_startup_64+0xa4/0xb0
25 Oct 13 02:34:40 ccs.covici.com kernel: bad: scheduling from the idle
26 thread!
27 Oct 13 02:34:40 ccs.covici.com kernel: CPU: 5 PID: 0 Comm: swapper/5
28 Tainted: P W O 5.4.69-gentoo #1
29 Oct 13 02:34:40 ccs.covici.com kernel: Hardware name: Supermicro Super
30 Server/X11SCA-W, BIOS 1.2 12/05/2019
31 Oct 13 02:34:40 ccs.covici.com kernel: Call Trace:
32 Oct 13 02:34:40 ccs.covici.com kernel: dump_stack+0x71/0x98
33 Oct 13 02:34:40 ccs.covici.com kernel: dequeue_task_idle+0x1f/0x28
34 Oct 13 02:34:40 ccs.covici.com kernel: __schedule+0x167/0x5d6
35 Oct 13 02:34:40 ccs.covici.com kernel: schedule_idle+0x2a/0x33
36 Oct 13 02:34:40 ccs.covici.com kernel: do_idle+0x1d0/0x1f2
37 Oct 13 02:34:40 ccs.covici.com kernel: cpu_startup_entry+0x1d/0x1f
38 Oct 13 02:34:40 ccs.covici.com kernel: start_secondary+0x17b/0x198
39 Oct 13 02:34:40 ccs.covici.com kernel: secondary_startup_64+0xa4/0xb0
40
41
42 How would I even be able to find out what is happening here?
43
44 Any thoughts appreciated.
45
46 --
47 Your life is like a penny. You're going to lose it. The question is:
48 How do
49 you spend it?
50
51 John Covici wb2una
52 covici@××××××××××.com

Replies

Subject Author
Re: [gentoo-user] kernel bad scheduling from idle thread "J. Roeleveld" <joost@××××××××.org>