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Tasklist

FS#33567 - [linux] 3.7.4-1 panics when my dell n5050 laptop goes to suspend or hibernate

Attached to Project: Arch Linux
Opened by Safi ud Din Khan (safiuddinkhan) - Saturday, 26 January 2013, 08:09 GMT
Last edited by Tobias Powalowski (tpowa) - Monday, 04 February 2013, 07:25 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas B├Ąchler (brain0)
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
I am using a Dell n5050 Laptop with intel core i3 processer . although i had problem before with suspend on resuming but hibernate function worked fine . but after i upgraded to kernel 3.7.4-1 neither hibernate nor suspend works .
while using suspend before my system used to go to suspend fine while resume was not always successful but now when i start suspend screen goes blank while i could still see the LEDs of power and wifi running and no key reponse nor going to ssh works . sometimes the kernel straight forwardly goes to panic and i could see the caps lock light blinking

on hibernate before upgrade it used to work fine but now same symptoms .
downgrading to kernel 3.6.11-1 solves the problem . on kernel 3.7.4-1 i have tested everything removing all module which i think are causing the problem or trying to do suspend and hibernate without x running but nothing works .

i have also tried pm_trace but it does not show anything in dmesg
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Monday, 04 February 2013, 07:25 GMT
Reason for closing:  Fixed
Comment by Safi ud Din Khan (safiuddinkhan) - Saturday, 26 January 2013, 08:14 GMT
here is dmesg log without any kernel parameter related to acpi
Comment by Safi ud Din Khan (safiuddinkhan) - Saturday, 26 January 2013, 08:36 GMT
here is dmesg log from when i downgraded and used kernel 3.6.11-1
Comment by Tobias Powalowski (tpowa) - Saturday, 26 January 2013, 18:47 GMT
Perhaps related #33516
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 09:53 GMT
This is what happen when i do suspend
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 09:56 GMT
after screen goes blank system light continues to light up and nothing happens and system does not go into suspend . sometimes kernel panic if i am able to get the panic message i will post it as well
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 10:05 GMT
This is what happens when i do hibernation by these commands
echo devices > /sys/power/pm_test
echo platform > /sys/power/disk
echo disk > /sys/power/state
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 10:05 GMT
problem still continues in kernel 3.7.5
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 10:35 GMT
might be this pic helps you detect the problem which i caught after doing suspend again with different kerenel debug parameters
"debug log_buf_len=10M print_fatal_signals=1 LOGLEVEL=8 earlyprintk=vga,keep no_console_suspend acpi_sleep=nonvs"
for that i was booting with these kernel parameters
"debug ignore_loglevel log_buf_len=10M print_fatal_signals=1 LOGLEVEL=8 earlyprintk=vga,keep sched_debug panic=30 pause_on_oops=5 rootwait oops=panic" while caputring the other videos


after "PM: Entering Mem Sleep" it says ehci_hcd something and then it stops at
sda stoping disk after that computer does not response and i had to hard restart it
   suspend.png (125.9 KiB)
Comment by Safi ud Din Khan (safiuddinkhan) - Sunday, 03 February 2013, 23:03 GMT
Problem is solved

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