Bug 24379
| Summary: | ahc broken in STABLE | ||
|---|---|---|---|
| Product: | Base System | Reporter: | send-pr <send-pr> |
| Component: | kern | Assignee: | Justin T. Gibbs <gibbs> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | CC: | send-pr |
| Priority: | Normal | ||
| Version: | 4.2-STABLE | ||
| Hardware: | Any | ||
| OS: | Any | ||
On Tue, 16 Jan 2001 send-pr@oldach.net wrote: > ahc0: <Adaptec aic7770 SCSI adapter> at 0xbc00-0xbcff, irq 15 (level) > ahc0: on eisa0 slot 11 > > > Fatal trap 12: page fault while in kernel mode > fault virtual address = 0x40 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc01af866 > stack pointer = 0x10:0xc045fea0 > frame pointer = 0x10:0xc045fea0 > code segment = base rx0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, def32 1, gran 1 > processor eflags = interrupt enabled, resume, IOPL = 0 > current process = 0 (swapper) > interrupt mask = net tty bio cam > trap number = 12 > panic: page fault > Uptime: 0s > Automatic reboot in 15 seconds - press a key on the console to abort 'rid' is not being initialized to '0' in ahc_eisa.c:aic7770_map_registers() before being used in the first bus_alloc_resource() call. (IIRC and have not already fixed this problem.) -- | Matthew N. Dodd | '78 Datsun 280Z | '75 Volvo 164E | FreeBSD/NetBSD | | winter@jurai.net | 2 x '84 Volvo 245DL | ix86,sparc,pmax | | http://www.jurai.net/~winter | This Space For Rent | ISO8802.5 4ever | Matthew N. Dodd:
> 'rid' is not being initialized to '0' in
> ahc_eisa.c:aic7770_map_registers() before being used in the first
> bus_alloc_resource() call. (IIRC and have not already fixed this
> problem.)
The same is also in aic7770_probe. I have fixed both, but still get the
same trap at the same virtual address. I suspect that it happens a bit
earlier, e.g. during device probe.
Responsible Changed From-To: freebsd-bugs->gibbs The ahc driver is Justin's. . State Changed From-To: open->closed Submitter says (on the freebsd-bugs list) that Justin's checkin to RELENG_4 on 1/27/2001 fixed his problem. |
dmesg of a working 4.2-STABLE of 20th December 2000: Copyright (c) 1992-2000 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 4.2-STABLE #0: Wed Dec 20 14:55:40 CET 2000 toor@com:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz CPU: i486 DX2 (486-class CPU) Origin = "GenuineIntel" Id = 0x435 Stepping = 5 Features=0x3<FPU,VME> real memory = 41943040 (40960K bytes) config> eisa 12 config> di adv0 config> di aha0 config> di aic0 config> di ata1 config> di bt0 config> di cs0 config> di ed0 config> di fe0 config> di ie0 config> di lnc0 config> di pcic0 config> di sn0 config> q avail memory = 36581376 (35724K bytes) Preloaded elf kernel "kernel" at 0xc0438000. Preloaded userconfig_script "/boot/kernel.conf" at 0xc043809c. md0: Malloc disk npx0: <math processor> on motherboard npx0: INT 16 interface eisa0: <EISA bus> on motherboard mainboard0: <HWPc081 (System Board)> on eisa0 slot 0 ep0: <3Com 3C579-BNC EISA Network Adapter> at 0x1000-0x100f, 0x1c80-0x1c89 ep0: irq 5 (level) on eisa0 slot 1 ep0: Ethernet address 00:20:af:73:f3:48 ahc0: <Adaptec aic7770 SCSI adapter> at 0xbc00-0xbcff, irq 15 (level) ahc0: on eisa0 slot 11 aic7770: Twin Channel, A SCSI Id=7, B SCSI Id=7, primary A, 4/255 SCBs isa0: <ISA bus> on motherboard fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0 psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: model Generic PS/2 mouse, device ID 0 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 Waiting 15 seconds for SCSI devices to settle da0 at ahc0 bus 0 target 0 lun 0 da0: <MICROP 3243-19 1128RQAV RQAV> Fixed Direct Access SCSI-2 device da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled da0: 4095MB (8388315 512 byte sectors: 255H 63S/T 522C) Mounting root from ufs:/dev/da0s1a dmesg of a broken kernel as of today: Copyright (c) 1992-2001 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 4.2-STABLE #0: Tue Jan 16 08:13:04 CET 2001 toor@com:/usr/obj/usr/src/sys/GENERIC Timecounter "i8254" frequency 1193182 Hz CPU: i486 DX2 (486-class CPU) Origin = "GenuineIntel" Id = 0x435 Stepping = 5 Features=0x3<FPU,VME> real memory = 41943040 (40960K bytes) config> eisa 12 config> di adv0 config> di aha0 config> di aic0 config> di ata1 config> di bt0 config> di cs0 config> di ed0 config> di fe0 config> di ie0 config> di lnc0 config> di pcic0 config> di sn0 config> q avail memory = 36581376 (35724K bytes) Preloaded elf kernel "kernel.broken" at 0xc043e000. Preloaded userconfig_script "/boot/kernel.conf" at 0xc043e0a4. md0: Malloc disk npx0: <math processor> on motherboard npx0: INT 16 interface eisa0: <EISA bus> on motherboard mainboard0: <HWPc081 (System Board)> on eisa0 slot 0 ep0: <3Com 3C579-BNC EISA Network Adapter> at 0x1000-0x100f, 0x1c80-0x1c89 ep0: irq 5 (level) on eisa0 slot 1 ep0: Ethernet address 00:20:af:73:f3:48 ahc0: <Adaptec aic7770 SCSI adapter> at 0xbc00-0xbcff, irq 15 (level) ahc0: on eisa0 slot 11 Fatal trap 12: page fault while in kernel mode fault virtual address = 0x40 fault code = supervisor read, page not present instruction pointer = 0x8:0xc01af866 stack pointer = 0x10:0xc045fea0 frame pointer = 0x10:0xc045fea0 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (swapper) interrupt mask = net tty bio cam trap number = 12 panic: page fault Uptime: 0s Automatic reboot in 15 seconds - press a key on the console to abort