Date: Mon, 19 Apr 2004 12:13:43 +0400 From: Andrew Belashov <bel@orel.ru> To: freebsd-sparc64@freebsd.org Subject: Re: watchdog reset Message-ID: <40838A37.2050800@orel.ru>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello! RJ45 wrote: | I wrote some time ago about this problem. | I have sporadic watchdog reset errors and machine goes to PROM. | I have ultra 60 dual 450MHz. | | Someone told me that it could be faulty hardware (RAM for example). | Anyway this kind of error never occourred me with solaris 9 installed. | | So I ask here if someone else has this kind of sporadic problem | with other ultra type of workstations. | | I added debug options to the kernel but I could not trace anything useful | once the machine is in PROM I have to reset it and no kernel crash dump | is written to the disk at boot time. Rebuild kernel without SMP option and try it. I have statistics for five phisical machines for period more of one year. Versions of FreeBSD from 5.0-RELEASE to CURRENT. | N |Machine | CPUs | SMP option | Stability +---+--------------+------+------------+----------------------- | 1 |Netra T1 105 | 1 | YES | Excellent | 2 |Netra T1 105 | 1 | YES | Excellent | 3 |Ultra 10 | 1 | YES | Excellent | 4a|Ultra 60 | 2 | YES | Bad | 4b|-//- | 2 | NO | Excellent | 5a|Ultra 60 | 2 | YES | Bad | 5b|-//- | 2 | NO | Excellent Ultra 60 periodical hard lookup when kernel build with SMP option :( Also, with option DDB (kernel debugger) kernel may by generate strange panic: =================================================================== panic: ipi_send: couldn't send ipi cpuid = 1; Debugger("panic") Stopped at Debugger+0x1c: ta %xcc, 1 db> trace panic() at panic+0x134 cpu_ipi_send() at cpu_ipi_send+0xb0 cpu_ipi_selected() at cpu_ipi_selected+0x38 tlb_page_demap() at tlb_page_demap+0x74 pmap_zero_page_idle() at pmap_zero_page_idle+0xe4 vm_page_zero_idle() at vm_page_zero_idle+0x74 vm_pagezero() at vm_pagezero+0xb4 fork_exit() at fork_exit+0x90 fork_trampoline() at fork_trampoline+0x8 =================================================================== With best regards, Andrew Belashov. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFAg4o1wF8YpH80o/IRAuPHAJ9GA9X82kYl6HOzmg04cocuePzA+QCdH3oI dVX8wnq1QcLS4Ffj4/oALHU= =ojw1 -----END PGP SIGNATURE-----
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