Here's a decoded backtrace of the 5.0-rc5+ crash (commit 41ceb5e8 w/ the
fix from commit 620a6dc4075 applied), which looks quite plausible.
static void __free_domain_allocs(struct s_data *d, enum s_alloc what,
const struct cpumask *cpu_map)
{
[...]
1196 case sa_sd_storage:
1197 __sdt_free(cpu_map);
/* Fall through */
[...]
}
static void __sdt_free(const struct cpumask *cpu_map)
{
[...]
1781 if (sdd->sd) {
1782 sd = *per_cpu_ptr(sdd->sd, j); <<< crash here
[...]
}
static int
build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *a\
ttr)
{
[...]
error:
1989 __free_domain_allocs(&d, alloc_state, cpu_map);
1990
1991 return ret;
}
[ 11.975494] alternatives: patching kernel code
[ 11.985402] Unable to handle kernel paging request at virtual address 000067
44c1718004
[ 11.994200] Mem abort info:
[ 11.997287] ESR = 0x96000004
[ 12.000667] Exception class = DABT (current EL), IL = 32 bits
[ 12.007236] SET = 0, FnV = 0
[ 12.010617] EA = 0, S1PTW = 0
[ 12.014092] Data abort info:
[ 12.017278] ISV = 0, ISS = 0x00000004
[ 12.021528] CM = 0, WnR = 0
[ 12.024810] [00006744c1718004] user address but active_mm is swapper
[ 12.031859] Internal error: Oops: 96000004 [#1] SMP
[ 12.037266] Modules linked in:
[ 12.040648] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.0.0-rc5+ #7
[ 12.047601] pstate: 80800009 (Nzcv daif -PAN +UAO)
[ 12.052917] pc : build_sched_domains
(/home/ubuntu/linux/kernel/sched/topology.c:1782
/home/ubuntu/linux/kernel/sched/topology.c:1197
/home/ubuntu/linux/kernel/sched/topology.c:1989)
[ 12.058133] lr : build_sched_domains
(/home/ubuntu/linux/kernel/sched/topology.c:1778
/home/ubuntu/linux/kernel/sched/topology.c:1197
/home/ubuntu/linux/kernel/sched/topology.c:1989)
[ 12.063342] sp : ffff00001043bcf0
[ 12.067011] x29: ffff00001043bcf0 x28: ffffb75d3ae21a00
[ 12.072900] x27: ffff50187e5dc730 x26: ffffb75d3a806e80
[ 12.078788] x25: ffff50187e5dd3a4 x24: ffffb75d3a8077a0
[ 12.084675] x23: 0000000000000000 x22: ffff50187e5dd3a4
[ 12.090561] x21: ffff50187e5dc730 x20: ffffd77cfb981400
[ 12.096452] x19: 0000000000000000 x18: 0000000000000014
[ 12.102342] x17: 00000000c60b0fdd x16: 00000000eb2df79d
[ 12.108231] x15: 000000001a6f88f6 x14: 00000000a5b719f8
[ 12.114122] x13: 00000000006ba184 x12: 000000004b281177
[ 12.120013] x11: ffff7f5df3eebf80 x10: 00000000cf4217a7
[ 12.125901] x9 : 0000000000003570 x8 : 0000000000210d00
[ 12.131791] x7 : ffffd77cfbaee580 x6 : 0000000000000002
[ 12.137680] x5 : ffffd77d7fe741c0 x4 : ffffffffffffffff
[ 12.143571] x3 : 0000000000000000 x2 : 00006744c1718000
[ 12.149460] x1 : 0000000000000004 x0 : 0000000000000004
[ 12.155352] Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
[ 12.162785] Call trace:
[ 12.165490] build_sched_domains
(/home/ubuntu/linux/kernel/sched/topology.c:1782
/home/ubuntu/linux/kernel/sched/topology.c:1197
/home/ubuntu/linux/kernel/sched/topology.c:1989)
[ 12.170314] sched_init_domains
(/home/ubuntu/linux/kernel/sched/topology.c:2064)
[ 12.174760] sched_init_smp (/home/ubuntu/linux/kernel/sched/core.c:5876)
[ 12.178812] kernel_init_freeable (/home/ubuntu/linux/init/main.c:950
/home/ubuntu/linux/init/main.c:964 /home/ubuntu/linux/init/main.c:982
/home/ubuntu/linux/init/main.c:1135)
[ 12.183641] kernel_init (/home/ubuntu/linux/init/main.c:1057)
[ 12.187502] ret_from_fork
(/home/ubuntu/linux/arch/arm64/kernel/entry.S:1073)
[ 12.191460] Code: b4000201 93407e77 aa0103e0 f8777aa2 (f8626800)
All code
========
0: b4000201 cbz x1, 0x40
4: 93407e77 sxtw x23, w19
8: aa0103e0 mov x0, x1
c: f8777aa2 ldr x2, [x21, x23, lsl #3]
10:* f8626800 ldr x0, [x0, x2] <-- trapping instruction
Code starting with the faulting instruction
===========================================
0: f8626800 ldr x0, [x0, x2]
[ 12.198259] ---[ end trace 90837fdb22e7ef78 ]---
[ 12.203390] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
[ 12.211906] SMP: stopping secondary CPUs
[ 12.216276] ---[ end Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b ]---
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https://bugs.launchpad.net/bugs/1951289
Title:
ubuntu_ltp_controllers:cpuset_sched_domains: tests 3,9,11,17,19,25
report incorrect sched domain for cpu#32
Status in kunpeng920:
New
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Bionic:
Incomplete
Status in linux source package in Focal:
Incomplete
Status in linux source package in Hirsute:
Incomplete
Bug description:
On scobee-kernel(arm64) with hirsute:linux(5.11.0-41.45) for
sru-20211108 there are several reports about the sched domain not
covering the full range. The same does not happen on kuzzle. But 32 is
a bit of a suspicious number.
Running tests.......
cpuset_sched_domains 1 TINFO: CPUs are numbered continuously starting at 0
(0-127)
cpuset_sched_domains 1 TINFO: Nodes are numbered continuously starting at 0
(0-3)
cpuset_sched_domains 1 TINFO: root group load balance test
cpuset_sched_domains 1 TINFO: sched load balance: 0
cpuset_sched_domains 1 TINFO: CPU hotplug:
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 1 TPASS: partition sched domains succeeded.
cpuset_sched_domains 3 TINFO: root group load balance test
cpuset_sched_domains 3 TINFO: sched load balance: 1
cpuset_sched_domains 3 TINFO: CPU hotplug:
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 3 TFAIL: partition sched domains failed.
cpuset_sched_domains 5 TINFO: root group load balance test
cpuset_sched_domains 5 TINFO: sched load balance: 0
cpuset_sched_domains 5 TINFO: CPU hotplug:
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 5 TPASS: partition sched domains succeeded.
cpuset_sched_domains 7 TINFO: root group load balance test
cpuset_sched_domains 7 TINFO: sched load balance: 0
cpuset_sched_domains 7 TINFO: CPU hotplug:
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 7 TPASS: partition sched domains succeeded.
cpuset_sched_domains 9 TINFO: root group load balance test
cpuset_sched_domains 9 TINFO: sched load balance: 1
cpuset_sched_domains 9 TINFO: CPU hotplug:
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 9 TFAIL: partition sched domains failed.
cpuset_sched_domains 11 TINFO: root group load balance test
cpuset_sched_domains 11 TINFO: sched load balance: 1
cpuset_sched_domains 11 TINFO: CPU hotplug:
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 11 TFAIL: partition sched domains failed.
cpuset_sched_domains 13 TINFO: general group load balance test
cpuset_sched_domains 13 TINFO: root group info:
cpuset_sched_domains 13 TINFO: sched load balance: 0
cpuset_sched_domains 13 TINFO: general group info:
cpuset_sched_domains 13 TINFO: cpus: -
cpuset_sched_domains 13 TINFO: sched load balance: 1
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 13 TPASS: partition sched domains succeeded.
cpuset_sched_domains 15 TINFO: general group load balance test
cpuset_sched_domains 15 TINFO: root group info:
cpuset_sched_domains 15 TINFO: sched load balance: 0
cpuset_sched_domains 15 TINFO: general group info:
cpuset_sched_domains 15 TINFO: cpus: 1
cpuset_sched_domains 15 TINFO: sched load balance: 0
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 15 TPASS: partition sched domains succeeded.
cpuset_sched_domains 17 TINFO: general group load balance test
cpuset_sched_domains 17 TINFO: root group info:
cpuset_sched_domains 17 TINFO: sched load balance: 1
cpuset_sched_domains 17 TINFO: general group info:
cpuset_sched_domains 17 TINFO: cpus: -
cpuset_sched_domains 17 TINFO: sched load balance: 1
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 17 TFAIL: partition sched domains failed.
cpuset_sched_domains 19 TINFO: general group load balance test
cpuset_sched_domains 19 TINFO: root group info:
cpuset_sched_domains 19 TINFO: sched load balance: 1
cpuset_sched_domains 19 TINFO: general group info:
cpuset_sched_domains 19 TINFO: cpus: 1
cpuset_sched_domains 19 TINFO: sched load balance: 1
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 19 TFAIL: partition sched domains failed.
cpuset_sched_domains 21 TINFO: general group load balance test
cpuset_sched_domains 21 TINFO: root group info:
cpuset_sched_domains 21 TINFO: sched load balance: 0
cpuset_sched_domains 21 TINFO: general group info:
cpuset_sched_domains 21 TINFO: cpus: 1,2
cpuset_sched_domains 21 TINFO: sched load balance: 0
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 21 TPASS: partition sched domains succeeded.
cpuset_sched_domains 23 TINFO: general group load balance test
cpuset_sched_domains 23 TINFO: root group info:
cpuset_sched_domains 23 TINFO: sched load balance: 0
cpuset_sched_domains 23 TINFO: general group info:
cpuset_sched_domains 23 TINFO: cpus: 1,2
cpuset_sched_domains 23 TINFO: sched load balance: 1
cpuset_check_domains 1 TPASS : check_sched_domains passed
cpuset_sched_domains 23 TPASS: partition sched domains succeeded.
cpuset_sched_domains 25 TINFO: general group load balance test
cpuset_sched_domains 25 TINFO: root group info:
cpuset_sched_domains 25 TINFO: sched load balance: 0
cpuset_sched_domains 25 TINFO: general group info:
cpuset_sched_domains 25 TINFO: cpus:
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127
cpuset_sched_domains 25 TINFO: sched load balance: 1
cpuset_check_domains 1 TFAIL : cpuset_sched_domains_check.c:110:
cpu32's sched domain is wrong(Domain: 0-127, CPU's Sched Domain: 0-95).
cpuset_sched_domains 25 TFAIL: partition sched domains failed.
cpuset_sched_domains 27 TINFO: general group load balance test
cpuset_sched_domains 27 TINFO: root group info:
cpuset_sched_domains 27 TINFO: sched load balance: 0
cpuset_sched_domains 27 TINFO: general group1 info:
cpuset_sched_domains 27 TINFO: cpus: 1
cpuset_sched_domains 27 TINFO: sched load balance: 1
cpuset_sched_domains 27 TINFO: general group2 info:
cpuset_sched_domains 27 TINFO: cpus: 0
cpuset_sched_domains 27 TINFO: sched load balance: 1
cpuset_sched_domains 27 TINFO: CPU hotplug: none
cpuset_sched_domains 27 TPASS: partition sched domains succeeded.
cpuset_sched_domains 29 TINFO: general group load balance test
cpuset_sched_domains 29 TINFO: root group info:
cpuset_sched_domains 29 TINFO: sched load balance: 0
cpuset_sched_domains 29 TINFO: general group1 info:
cpuset_sched_domains 29 TINFO: cpus: 1,2
cpuset_sched_domains 29 TINFO: sched load balance: 1
cpuset_sched_domains 29 TINFO: general group2 info:
cpuset_sched_domains 29 TINFO: cpus: 0-3
cpuset_sched_domains 29 TINFO: sched load balance: 0
cpuset_sched_domains 29 TINFO: CPU hotplug: none
cpuset_sched_domains 29 TPASS: partition sched domains succeeded.
cpuset_sched_domains 31 TINFO: general group load balance test
cpuset_sched_domains 31 TINFO: root group info:
cpuset_sched_domains 31 TINFO: sched load balance: 0
cpuset_sched_domains 31 TINFO: general group1 info:
cpuset_sched_domains 31 TINFO: cpus: 1,2
cpuset_sched_domains 31 TINFO: sched load balance: 1
cpuset_sched_domains 31 TINFO: general group2 info:
cpuset_sched_domains 31 TINFO: cpus: 0,3
cpuset_sched_domains 31 TINFO: sched load balance: 1
cpuset_sched_domains 31 TINFO: CPU hotplug: none
cpuset_sched_domains 31 TPASS: partition sched domains succeeded.
cpuset_sched_domains 33 TINFO: general group load balance test
cpuset_sched_domains 33 TINFO: root group info:
cpuset_sched_domains 33 TINFO: sched load balance: 0
cpuset_sched_domains 33 TINFO: general group1 info:
cpuset_sched_domains 33 TINFO: cpus: 1,2
cpuset_sched_domains 33 TINFO: sched load balance: 1
cpuset_sched_domains 33 TINFO: general group2 info:
cpuset_sched_domains 33 TINFO: cpus: 1,3
cpuset_sched_domains 33 TINFO: sched load balance: 1
cpuset_sched_domains 33 TINFO: CPU hotplug: none
cpuset_sched_domains 33 TPASS: partition sched domains succeeded.
cpuset_sched_domains 35 TINFO: general group load balance test
cpuset_sched_domains 35 TINFO: root group info:
cpuset_sched_domains 35 TINFO: sched load balance: 0
cpuset_sched_domains 35 TINFO: general group1 info:
cpuset_sched_domains 35 TINFO: cpus: 1,2
cpuset_sched_domains 35 TINFO: sched load balance: 1
cpuset_sched_domains 35 TINFO: general group2 info:
cpuset_sched_domains 35 TINFO: cpus: 1,3
cpuset_sched_domains 35 TINFO: sched load balance: 1
cpuset_sched_domains 35 TINFO: CPU hotplug: offline
cpuset_sched_domains 35 TPASS: partition sched domains succeeded.
cpuset_sched_domains 37 TINFO: general group load balance test
cpuset_sched_domains 37 TINFO: root group info:
cpuset_sched_domains 37 TINFO: sched load balance: 0
cpuset_sched_domains 37 TINFO: general group1 info:
cpuset_sched_domains 37 TINFO: cpus: 1,2
cpuset_sched_domains 37 TINFO: sched load balance: 1
cpuset_sched_domains 37 TINFO: general group2 info:
cpuset_sched_domains 37 TINFO: cpus: 1,3
cpuset_sched_domains 37 TINFO: sched load balance: 1
cpuset_sched_domains 37 TINFO: CPU hotplug: online
cpuset_sched_domains 37 TPASS: partition sched domains succeeded.
INFO: ltp-pan reported some tests FAIL
LTP Version: 20210927
INFO: Test end time: Sat Nov 6 19:28:17 UTC 2021
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