Date: Sat, 03 Aug 2002 07:20:00 -0600 From: lewwid <lewwid@telusplanet.net> To: freebsd-stable@freebsd.org Subject: the SOLUTION to my kernel panics Message-ID: <C0E0ID1VZUMH4SRRP2VHDDAHDYT6VP.3d4bd880@Jeff>
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I have 2 drives in my box. SCSI and IDE. The maxtor IDE failed and was panicking my kernel.
I suspect that anyways because I had my ISP unplug my IDE drive and no more panics.
The backtrace showed diskerr() so I thought about losing the IDE.
Kernel 4.2-stable does not panic when you have a broken drive. That's why I could run
4.2-stable's kernel.
Thanks to Larne in #freebsdhelp for the back-trace help. I finally got the box upgraded ;)
#### I got this in /var/log/all.log
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ata0: resetting devices .. done
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ad0: 9774MB <Maxtor DRACO> [19859/16/63] at ata0-master UDMA33
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: Waiting 15 seconds for SCSI devices to settle
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ad0: READ command timeout tag=0 serv=0 - resetting
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ata0: resetting devices .. done
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ad0: READ command timeout tag=0 serv=0 - resetting
Aug 2 07:52:23 xxxxxxxxxxxxx /foo: ata0: resetting devices .. done
#### 4.6.1-RELEASE-p7 FreeBSD 4.6.1-RELEASE-p7 #0: Fri Aug 2 09:17:14 PDT 2002
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x5
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01dc193
stack pointer = 0x10:0xc03c7d18
frame pointer = 0x10:0xc03c7d18
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = net tty bio
trap number = 12
panic: page fault
#### Back trace:
(kgdb) bt
#0 0xc01e7f6a in dumpsys ()
#1 0xc01e7d3b in boot ()
#2 0xc01e8160 in poweroff_wait ()
#3 0xc0350f9e in trap_fatal ()
#4 0xc0350c71 in trap_pfault ()
#5 0xc035085b in trap ()
#6 0xc01dc193 in minor ()
#7 0xc02ef9ed in diskerr ()
#8 0xc015b596 in ad_interrupt ()
#9 0xc0152f70 in ata_intr ()
#10 0xc022a59d in if_slowtimo ()
#11 0xc01edbcd in softclock ()
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