[pptp-server] PoPToP crashing on SMP RedHat-7

[Michael St. Laurent]

Poptop version 1.1.2 keeps crashing on me.  I have it running on an i386
RedHat-7 system using kernel-smp-2.2.17-14.  My pppd version is 2.3.11 and
has all the patches I could find (chapms-v2, mppe, require-mppe,
strip-msdomain and the RedHat patches).

The kernel log contains the following:

Apr  8 00:03:20 guardian kernel: Unable to handle kernel NULL pointer
dereferenc
e at virtual address 00000070
Apr  8 00:03:20 guardian kernel: current->tss.cr3 = 0ed0a000, %cr3 =
0ed0a000
Apr  8 00:03:20 guardian kernel: *pde = 00000000
Apr  8 00:03:20 guardian kernel: Oops: 0002
Apr  8 00:03:20 guardian kernel: CPU:    1
Apr  8 00:03:20 guardian kernel: EIP:
0010:[aic7xxx:__insmod_aic7xxx_S.bss_L2
56+328003/281562878]
Apr  8 00:03:20 guardian kernel: EFLAGS: 00010282
Apr  8 00:03:20 guardian kernel: eax: 00004000   ebx: 0000006e   ecx:
c2771c00
 edx: 00000000
Apr  8 00:03:20 guardian kernel: esi: c2771ed9   edi: c2771c48   ebp:
c2771c48
 esp: ceb97ebc
Apr  8 00:03:20 guardian kernel: ds: 0018   es: 0018   ss: 0018
Apr  8 00:03:20 guardian kernel: Process pptpctrl (pid: 25208, process nr:
107,
stackpage=ceb97000)
Apr  8 00:03:20 guardian kernel: Stack: cdfc8000 00000000 ffff6e1f 00000002
c277
1c48 00000000 c234d000 c2771f2e
Apr  8 00:03:21 guardian kernel:        0000008f d0879f6c c2771c00 c2771c00
cdfc
8000 ceb97f8c 00000000 d0879b8b
Apr  8 00:03:21 guardian kernel:        c2771c00 cdfc8000 c6f88000 c01bb77a
cdfc
8000 00000000 c6f88000 c01b0a3a
Apr  8 00:03:21 guardian kernel: Call Trace:
[aic7xxx:__insmod_aic7xxx_S.bss_L25
6+327212/281563669] [aic7xxx:__insmod_aic7xxx_S.bss_L256+326219/281564662]
[pty_
unthrottle+38/88] [check_unthrottle+42/48] [read_chan+1678/1984]
[tty_read+174/2
08] [sys_read+192/228]
Apr  8 00:03:21 guardian kernel:        [system_call+52/56]
[startup_32+43/170]
Apr  8 00:03:21 guardian kernel: Code: f0 ff 4a 70 0f 94 c0 84 c0 74 09 52
e8 0c
 bc 8d ef 83 c4 04

I've seen one other reference to this problem in the archives but the author
was using version 1.0.  No solution was posted other than "I think the new
version doesn't do this."

Any thoughts?

--------------------
Michael St. Laurent
Hartwell Corporation