[RTEMS Project] #4143: fileio - Stack too small for login with password
RTEMS trac
trac at rtems.org
Mon Oct 12 13:17:05 UTC 2020
#4143: fileio - Stack too small for login with password
----------------------------+----------------------------------------------
Reporter: Frank | Owner: joel@…
Kuehndel |
Type: defect | Status: new
Priority: normal | Milestone: 6.1
Component: test | Version: 6
Severity: minor | Keywords: fileio,stack,password,login,root
Blocked By: | Blocking:
----------------------------+----------------------------------------------
When I use the 'shell' from the fileio sample with the command below:
{{{
env QEMU_AUDIO_DRV="none" \
qemu-system-arm -no-reboot -net none -nographic -M realview-pbx-a9 -m
256M \
-kernel build/arm/realview_pbx_a9_qemu/testsuites/samples/fileio.exe
}}}
The executable crashes with an "BLOWN STACK!!!" as soon as I try to login
as 'root' with password. (The logins without password work fine.)
Increasing
the stack size of the affected thread a bit (to 5 times
RTEMS_MINIMUM_STACK_SIZE) solves the issue.
How to reproduce:
1. Start the fileio sample in QEMU with the above command.
2. Type a key to stop the timer.
3. Type "s" <return> to enter the shell.
4. Login as "root" with the password printed to the terminal.
5. In the line with the first shell prompt, the text "BLOWN STACK!!!"
appears unexpectedly followed by further crash information.
{{{
[...]
/dev/foobar login: root
Password:
RTEMS Shell on /dev/foobar. Use 'help' to list commands.
SHLL [/] # BLOWN STACK!!!
task control block: 0x00205278
[...]
}}}
My config.ini was
[arm/realview_pbx_a9_qemu]
RTEMS_DEBUG = True
RTEMS_NETWORKING = True
RTEMS_POSIX_API = True
RTEMS_SMP = True
BUILD_TESTS = True
RTEMS origin.master at 558a19d3adff6a3ecf678f94408b48beccbbc9fb
--
Ticket URL: <http://devel.rtems.org/ticket/4143>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
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