Re: port-i386/53062: panic: SPL NOT LOWERED ON SYSCALL EXIT

[Jose Luis Rodriguez Garcia <joseyluis%gmail.com@localhost>]

With a kernel compiled with DEBUG and LOCKDEBUG I obtain this error from kernel (green color):

execve_loadvm: check exec failed 8
execve_loadvm: check exec failed 8
execve_loadvm: check exec failed 8
execve_loadvm: check exec failed 8

It is just at beginning and several seconds before of the crash. I don't know if it can be related to the panic.

On Fri, Mar 2, 2018 at 10:17 AM, Jose Luis Rodriguez Garcia <joseyluis%gmail.com@localhost> wrote:

I am runing NetBSD i386 under VirtualBox 5.2.6 r120293

After the system panics, if I don't power off the server on VirtualBox, I can't reproduce the panic after the system reboot (altough I am not sure that it works 100% reliable).

This is the copied output from a screen capture (copied by hand) with ktruss -i

568 679 java clock_gettime(0x1, 0xa8904f60) = 0

568 679 java clock_gettime(0x1, 0xa8904ea8) = 0

568 749 java futex(0x81632728, 0x81, 0x1, 0x8163728, 0, 0xa76fea38) = 0

568 749 java clock_gettime(0x1, 0xa76feab0) = 0

568 749 java clock_gettime(0x1, 0xa76fea18) = 0

568 602 java futex(0xbac2c428, 0x81, 0x1, 0xbac2c428, 0, 0xb8aaf0d8) = 0

568 602 java clock_gettime(0x1, 0xb8aaf0b8) = 0

568 645 java futex(0xbac44328, 0x81, 0x1, 0xbac44328, 0, 0xa89d4ee8)  = 0

568 645 java clock_gettime(0x1, 0xa89d4ec8) = 0

568 940 java clock_gettime                          = 0

568 940 java clock_gettime(0x1, 0xa7e5b6bc) = 0

568 940 java clock_gettime(0x1, 0xa7e5b6cc) = 0

panic: SPL NOT LOWERED ON SYSCALL EXIT

cpu= Begin traceback....

vpanic(c01006fd,db258fa8,a7e5ab38,c01006ee,c01006fd,a7e500b3,a7ea0023,a7ea0023,3d0023,a7d42c00) at netbsd:vpanic+0x121

snprintf(c01006fd,a7e500b3,a7e500b3,a7ea0023,a7ea0023,3d0023,a7d42c00,805aa400,a7e5ab38,65,a7e5aa98) at netbsd:snprintf

cpu: End of traceback...

dumping to dev 0,1 offset 2099624

dump 69 68 67 66 65 64 63 62 61 60 59 58 57 ......

On Thu, Mar 1, 2018 at 2:15 AM, <coypu%sdf.org@localhost> wrote:

The following reply was made to PR port-i386/53062; it has been noted by GNATS.

From: coypu%sdf.org@localhost
To: gnats-bugs%NetBSD.org@localhost
Cc:
Subject: Re: port-i386/53062: panic: SPL NOT LOWERED ON SYSCALL EXIT
Date: Thu, 1 Mar 2018 01:10:41 +0000

 I'm not sure what is happening from this backtrace.

 Will you consider running ktruss -i on one of the parent linux
 processes, outputting to stdout or a file, and seeing what the last
 messages before a panic are?

 Thanks.