Kernel crashed in clock()

[Jakub Jermář]

Changeset:mainline,398, default ia32 build, 5 CPUs, Qemu, crashed in clock(). See the attached screenshot for the stack trace and also the attached kernel disassembler output for address reference.

[Jakub Jermář]

Screenshot with the stack trace.

[Jakub Jermář]

This is the piece of clock() which was executing when the system crashed:

8012f614:       8b 43 04                mov    0x4(%ebx),%eax
8012f617:       8b 13                   mov    (%ebx),%edx
8012f619:       89 10                   mov    %edx,(%eax)           <==== crashed here
8012f61b:       8b 13                   mov    (%ebx),%edx
8012f61d:       89 42 04                mov    %eax,0x4(%edx)
8012f620:       c7 03 00 00 00 00       movl   $0x0,(%ebx)
8012f626:       c7 43 04 00 00 00 00    movl   $0x0,0x4(%ebx)
8012f62d:       8b 46 18                mov    0x18(%esi),%eax
8012f630:       89 45 e0                mov    %eax,-0x20(%ebp)
8012f633:       8b 56 1c                mov    0x1c(%esi),%edx
8012f636:       89 55 e4                mov    %edx,-0x1c(%ebp)
8012f639:       89 34 24                mov    %esi,(%esp)
8012f63c:       e8 db 02 00 00          call   8012f91c <timeout_reinitialize>

Trying to match this on the C source, it looks like the following piece of clock():

                        list_remove(l);                              <==== crashed here
                        f = h->handler;
                        arg = h->arg;
                        timeout_reinitialize(h);