Messages in this thread | | | From | Thomas-Mich Richter <> | Subject | Wrong module .text address in 4.16.0 | Date | Mon, 16 Apr 2018 07:51:47 +0200 |
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I just installed 4.16.0 and discovered the module .text address is wrong. It happens on s390 and x86 platforms. I have not tested others.
Here is the issue, I have used module qeth_l2 on s390 which is the ethernet device driver:
root@s35lp76 ~]# lsmod Module Size Used by qeth_l2 94208 1 ...
[root@s35lp76 ~]# cat /proc/modules | egrep '^qeth_l2' qeth_l2 94208 1 - Live 0x000003ff80401000 <---- This is the correct address in memory [root@s35lp76 ~]# cat /sys/module/qeth_l2/sections/.text 0x0000000018ea8363 <---- This is the wrong address [root@s35lp76 ~]#
File /sys/module/qeth_l2/sections/.text displays a very strange address which is definitely wrong. It should be something like 0x000003ff80401xxx.
Same on x86.
I have checked file kernel/module.c function add_sect_attrs() and it calls module_sect_show() when the sysfs file is read. And module_sect_show() uses
sprintf(buf, "0x%pK\n", (void *)sattr->address);
and my sysctl setting should be correct: [root@s35lp76 linux]# sysctl -a | fgrep kernel.kptr_restrict kernel.kptr_restrict = 0 [root@s35lp76 linux]#
I wonder if somebody else has seen this issue? Ideas how to fix this?
Thanks -- Thomas Richter, Dept 3303, IBM LTC Boeblingen Germany -- Vorsitzende des Aufsichtsrats: Martina Koederitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294
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