** Attachment added: "Makefile"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789519/+attachment/5185076/+files/Makefile
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https://bugs.launchpad.net/bugs/1789519
** Attachment added: "dell-smm-hwmon.c"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789519/+attachment/5185075/+files/dell-smm-hwmon.c
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** Attachment added: "low_mem_corruption.sh"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789519/+attachment/5185077/+files/low_mem_corruption.sh
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Since I reported this issue I have tried to debug this problem and found
that the function call to 'i8k_get_fn_status' in the kernel module
'dell-smm-hwmon'
(code at
https://github.com/torvalds/linux/blob/master/drivers/hwmon/dell-smm-hwmon.c)
is what causes low memory corruption on Dell
Tested the 4.19-rc1 upstream kernel (4.19.0-041900rc1)
and the issue still exists!
dmesg output showing "Memory corruption detected in low memory"
attached.
** Attachment added: "Low Memory Corruption - dmesg for kernel 4.19-rc1.txt"
Further Details on Problem:
Typical syslog output:
Aug 28 16:48:34 Inspiron-3847 kernel: [ 62.424273] Corrupted low
memory at a78dba88 (1000 phys) = 6110
Aug 28 16:48:34 Inspiron-3847 kernel: [ 62.424282] Corrupted low memory at
d190a321 (1008 phys) =
Public bug reported:
Dell Inspiron 3847 Desktop running Ubuntu 18.04.1 LTS
kernel: 4.15.0-33-generic
Corrupted low memory messages logged in syslog
Can be reproduced with script:
#!/bin/bash
# log to syslog...
logger -st low_mem_corruption.sh "Checking for low memory corruption with
kernel
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