Your message dated Sun, 09 May 2021 13:11:09 -0700 (PDT)
with message-id <609841dd.1c69fb81.d433.2...@mx.google.com>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #831875,
regarding linux-image-3.16.0-0.bpo.4-amd64: endless "NMI backtrace" loop
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
831875: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=831875
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: src:linux
Version: 3.16.7-ckt25-2+deb8u3~bpo70+1
Severity: normal

The system is running the wheezy release.

After some fibre channel multipathing issues, my system ended up
endlessly printing messages like the one below for each of 32 cpus,
every 3 sec. However the problem occurs in more common situations
than this - it sometimes occurs during boot-up, both from cold start
and warm reboot.

This seems to be worse in the 3.16 kernels, we never had issues like
this with 3.2 but had to move up to 3.16 for other issues related to
power management.

The BIOS has been adjusted to turn off all C state support,
the system runs at maximum performance.

Do you have any advice on measures to track this down more precisely?


-- Package-specific info:
** Version:
Linux version 3.16.0-0.bpo.4-amd64 (debian-kernel@lists.debian.org) (gcc 
version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.16.7-ckt25-2+deb8u3~bpo70+1 
(2016-07-07)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-3.16.0-0.bpo.4-amd64 
root=UUID=084a5068-b421-47bb-8eb3-f62516498242 ro console=ttyS0,9600n8 
console=tty0

** Not tainted


[205127.516687] NMI backtrace for cpu 28
[205127.516692] CPU: 28 PID: 0 Comm: swapper/28 Not tainted 
3.16.0-0.bpo.4-amd64 #1 Debian 3.16.7-ckt25-2+deb8u3~bpo70+1
[205127.516693] Hardware name: Dell Inc. PowerEdge R820/04K5X5, BIOS 1.5.0 
03/08/2013
[205127.516695] task: ffff880c0ea20310 ti: ffff880c0ea2c000 task.ti: 
ffff880c0ea2c000
[205127.516697] RIP: 0010:[<ffffffff81342c6c>]  [<ffffffff81342c6c>] 
intel_idle+0xcc/0x160
[205127.516702] RSP: 0018:ffff880c0ea2fe18  EFLAGS: 00000046
[205127.516704] RAX: 0000000000000030 RBX: 0000000000000010 RCX: 
0000000000000001
[205127.516705] RDX: 0000000000000000 RSI: ffff880c0ea2ffd8 RDI: 
000000000000001c
[205127.516706] RBP: 0000000000000005 R08: 0000000000000000 R09: 
0000000000005d20
[205127.516707] R10: 0000000000000000 R11: 00000001030e17d1 R12: 
0000000000000030
[205127.516708] R13: 0000000000000004 R14: 0000000000000005 R15: 
ffff880c0ea2c000
[205127.516710] FS:  0000000000000000(0000) GS:ffff880c3fbc0000(0000) 
knlGS:0000000000000000
[205127.516712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[205127.516713] CR2: 00007f6452f3de30 CR3: 0000000001811000 CR4: 
00000000000407e0
[205127.516714] Stack:
[205127.516715]  0000000000000000 0000001c00f38f2d ffffffff8101e085 
ffffe8f4003c0308
[205127.516718]  0000babd0c6ce19b ffffffff8189b6f0 ffffffff8189b520 
ffffffff8140e8e1
[205127.516720]  0000000000000000 0000000000f38f2d 000000000000d740 
ffffffff818e0540
[205127.516723] Call Trace:
[205127.516724]  [<ffffffff8101e085>] ? read_tsc+0x5/0x20
[205127.516729]  [<ffffffff8140e8e1>] ? cpuidle_enter_state+0x51/0xf0
[205127.516732]  [<ffffffff810b1e7a>] ? cpu_startup_entry+0x34a/0x4b0
[205127.516736]  [<ffffffff81047888>] ? start_secondary+0x218/0x2d0
[205127.516739] Code: 31 d2 65 48 8b 34 25 48 b8 00 00 48 89 d1 48 8d 86 38 c0 
ff ff 0f 01 c8 48 8b 86 38 c0 ff ff a8 08 75 08 b1 01 4c 89 e0 0f 01 c9 <65> 48 
8b 04 25 48 b8 00 00 f0 80 a0 3a c0 ff ff df 0f ae f0 48

** Model information
sys_vendor: Dell Inc.
product_name: PowerEdge R820
product_version:
chassis_vendor: Dell Inc.
chassis_version:
bios_vendor: Dell Inc.
bios_version: 1.5.0
board_vendor: Dell Inc.
board_name: 04K5X5
board_version: A06

** Loaded modules:
autofs4
nfsd
nfsv3
nfs_acl
rpcsec_gss_krb5
auth_rpcgss
oid_registry
nfsv4
dns_resolver
nfs
lockd
sunrpc
fscache
xfs
libcrc32c
dm_round_robin
loop
dm_multipath
scsi_dh
x86_pkg_temp_thermal
intel_powerclamp
intel_rapl
coretemp
kvm_intel
kvm
crct10dif_pclmul
crc32_pclmul
ttm
drm_kms_helper
aesni_intel
drm
aes_x86_64
iTCO_wdt
mei_me
lrw
i2c_algo_bit
iTCO_vendor_support
gf128mul
sb_edac
glue_helper
lpc_ich
mei
i2c_core
ioatdma
dcdbas
mfd_core
edac_core
ablk_helper
pcspkr
evdev
joydev
processor
shpchp
acpi_pad
ipmi_si
tpm_tis
button
thermal_sys
dca
cryptd
ipmi_msghandler
wmi
acpi_power_meter
tpm
ext4
crc16
mbcache
jbd2
dm_mod
hid_generic
usbhid
hid
sg
sr_mod
cdrom
sd_mod
ehci_pci
crc_t10dif
ehci_hcd
crct10dif_common
ahci
qla2xxx
libahci
usbcore
usb_common
scsi_transport_fc
tg3
libata
megaraid_sas
scsi_tgt
ptp
crc32c_intel
scsi_mod
pps_core
libphy




Vince
-- 

--- End Message ---
--- Begin Message ---
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---

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