Is there any support for userspace stack dump for crash utility?
----- Original Message -----
> I'd like to find help here that does anyone have tried to get the
> crash utility support the userspace stack dumping, or it already be
> Certainly userspace crash would not cause kernel panic, but for more
> robust product, we force kernel panic and trigger the kdump at every
> userspace crash.
> So the support for dumping user stack is import to us.
> Anyone has some idea to this feature?
> If we could get the stack like stack dump from userspace to kernel
> space with parameter showing, then that is perfect.
> -010|do_vfs_ioctl(filp = 0xCE575500, ?, ?, arg = 1181448720)
> -011|sys_ioctl(fd = 27, cmd = 30000, arg = 1181448720)
> -014|ioctl(?, request = 0)
There's no chance that the base crash utility will ever do that.
However, in your case, you might try the "gcore" extension
module. See its description, and download it from:
which will generate a core dump of that <pid>'s task.
Then you can run "gdb <command> core-<pid>". If it
works as advertised, then you should be able to get
a backtrace up until the point it entered the kernel.
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