I think I did see this first with gcc-3.3 from 20031229. Running the 3.3 testsuite (gcc) doesn't terminate. Instead, I see expect eating all CPU time, together with syslogd and klogd. /var get's filled with log messages in kern.log, syslog and debug.
The machine is a A500, kernel from the archives (kernel-image-2.4.21-64-smp_pa7.3) Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted Jan 11 06:42:49 pampa kernel: r00-03 0000000000000000 0000000040336510 000000004033655c fffffffffffffffa Jan 11 06:42:49 pampa kernel: r04-07 0000000040336570 0000000000001008 0000000000001002 0000000000000063 Jan 11 06:42:49 pampa kernel: r08-11 0000000000021148 0000000000207a8c 0000000000000006 0000000000005438 Jan 11 06:42:49 pampa kernel: r12-15 0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001 Jan 11 06:42:49 pampa kernel: r16-19 0000000000000000 0000000000000001 0000000000000000 00000000403349c8 Jan 11 06:42:49 pampa kernel: r20-23 0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8 Jan 11 06:42:49 pampa kernel: r24-27 00000000400a8ec2 000lt() pid=13367 command='expect' type=15 address=0x4abfccfe Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted Jan 11 06:42:49 pampa kernel: r00-03 0000000000000000 0000000040336510 000000004033655c fffffffffffffffa Jan 11 06:42:49 pampa kernel: r04-07 0000000040336570 0000000000001008 0000000000001002 0000000000000063 Jan 11 06:42:49 pampa kernel: r08-11 0000000000021148 0000000000207a8c 0000000000000006 0000000000005438 Jan 11 06:42:49 pampa kernel: r12-15 0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001 Jan 11 06:42:49 pampa kernel: r16-19 0000000000000000 0000000000000001 0000000000000000 00000000403349c8 Jan 11 06:42:49 pampa kernel: r20-23 0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8 Jan 11 06:42:49 pampa kernel: r24-27 00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4 Jan 11 06:42:49 pampa kernel: r28-31 00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004 Jan 11 06:42:49 pampa kernel: sr0-3 0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480 Jan 11 06:42:49 pampa kernel: sr4-7 0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047 Jan 11 06:42:49 pampa kernel: IIR: 0f881094 ISR: 0000000000d28480 IOR: 000000004abfccfe Jan 11 06:42:49 pampa kernel: CPU: 1 CR30: 0000000018f5c000 CR31: 0000000000008020 Jan 11 06:42:49 pampa kernel: ORIG_R28: 00000ab54abfccfa Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted Jan 11 06:42:49 pampa kernel: r00-03 0000000000000000 0000000040336510 000000004033655c fffffffffffffffa Jan 11 06:42:49 pampa kernel: r04-07 0000000040336570 0000000000001008 0000000000001002 0000000000000063 Jan 11 06:42:49 pampa kernel: r08-11 0000000000021148 0000000000207a8c 0000000000000006 0000000000005438 Jan 11 06:42:49 pampa kernel: r12-15 0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001 Jan 11 06:42:49 pampa kernel: r16-19 0000000000000000 0000000000000001 0000000000000000 00000000403349c8 Jan 11 06:42:49 pampa kernel: r20-23 0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8 Jan 11 06:42:49 pampa kernel: r24-27 00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4 Jan 11 06:42:49 pampa kernel: r28-31 00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004 Jan 11 06:42:49 pampa kernel: sr0-3 0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480 Jan 11 06:42:49 pampa kernel: sr4-7 0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047 Jan 11 06:42:49 pampa kernel: IIR: 0f881094 ISR: 0000000000d28480 IOR: 000000004abfccfe Jan 11 06:42:49 pampa kernel: CPU: 1 CR30: 0000000018f5c000 CR31: 0000000000008020 Jan 11 06:42:49 pampa kernel: ORIG_R28: 00000ab54abfccfa Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: do_page_fault() pid=13367 command='expect' type=15 address=0x4abfccfe Jan 11 06:42:49 pampa kernel: vm_start = 0x40353000, vm_end = 0x40355000 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI Jan 11 06:42:49 pampa kernel: PSW: 00000000000001001111111100001111 Not tainted Jan 11 06:42:49 pampa kernel: r00-03 0000000000000000 0000000040336510 000000004033655c fffffffffffffffa Jan 11 06:42:49 pampa kernel: r04-07 0000000040336570 0000000000001008 0000000000001002 0000000000000063 Jan 11 06:42:49 pampa kernel: r08-11 0000000000021148 0000000000207a8c 0000000000000006 0000000000005438 Jan 11 06:42:49 pampa kernel: r12-15 0000000040050a6c 0000000040050a78 0000000000021618 0000000000000001 Jan 11 06:42:49 pampa kernel: r16-19 0000000000000000 0000000000000001 0000000000000000 00000000403349c8 Jan 11 06:42:49 pampa kernel: r20-23 0000000000207bb8 00000ab50a94d694 00000000402af66a 00000000002067a8 Jan 11 06:42:49 pampa kernel: r24-27 00000000400a8ec2 00000ab50a94d690 00000ab50a94d694 0000000000020dd4 Jan 11 06:42:49 pampa kernel: r28-31 00000ab54abfccfa 0000000040336584 00000000faf06a80 0000000000000004 Jan 11 06:42:49 pampa kernel: sr0-3 0000000000d28480 0000000000d28480 0000000000000000 0000000000d28480 Jan 11 06:42:49 pampa kernel: sr4-7 0000000000d28480 0000000000d28480 0000000000d28480 0000000000d28480 Jan 11 06:42:49 pampa kernel: Jan 11 06:42:49 pampa kernel: IASQ: 0000000000d28480 0000000000d28480 IAOQ: 0000000040259043 0000000040259047 Jan 11 06:42:49 pampa kernel: IIR: 0f881094 ISR: 0000000000d28480 IOR: 000000004abfccfe Jan 11 06:42:49 pampa kernel: CPU: 1 CR30: 0000000018f5c000 CR31: 0000000000008020 Jan 11 06:42:49 pampa kernel: ORIG_R28: 00000ab54abfccfa
