Hello,
if I start an UML at the command line with a script and later try to put that
script into a background job, then the guest system either cored directly :
tfoerste@n22 ~ $ start_uml.sh
Locating the bottom of the address space ... 0x1000
Locating the top of the address space ... 0xc0000000
Core dump limits :
soft - NONE
hard - NONE
Checking that ptrace can change system call numbers...OK
Checking syscall emulation patch for ptrace...OK
Checking advanced syscall emulation patch for ptrace...OK
Checking for tmpfs mount on /dev/shm...OK
Checking PROT_EXEC mmap in /dev/shm/...OK
Checking for the skas3 patch in the host:
- /proc/mm...not found: No such file or directory
- PTRACE_FAULTINFO...not found
- PTRACE_LDT...not found
UML running in SKAS0 mode
Adding 10686464 bytes to physical memory to account for exec-shield gap
^Z
[2]+ Stopped start_uml.sh
tfoerste@n22 ~ $ bg
[2]+ start_uml.sh &
tfoerste@n22 ~ $ l
Desktop Mail SametimeMeetings SametimeTranscripts Wine core devel
download p tlm tmp virtual workspace
[2]- Terminated start_uml.sh
tfoerste@n22 ~ $ ls -l core
-rw------- 1 tfoerste users 268886016 Jul 28 11:12 core
- or - if it survives the Ctrl-Z + "bg" command I cannot stop it with this
command :
tfoerste@n22 ~ $ sudo ssh root@n22_uml "halt; exit"
ssh_exchange_identification: read: Connection reset by peer
At this point I've to halt the UML with uml_mconsole.
Is this an expected behaviour ?
(host and guest are running kernel 3.0).
--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
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