pcm: lock order reversal
Hello everybody, I'm getting a lock order reversal from pcm over last days, which look like this: Dec 15 16:47:54 mephisto kernel: lock order reversal Dec 15 16:47:54 mephisto kernel: 1st 0xc390e640 pcm0 @ ../../../dev/sound/pcm/sound.c:132 Dec 15 16:47:54 mephisto kernel: 2nd 0xc390e500 pcm0:play:0 @ ../../../dev/sound/pcm/sound.c:189 I don't know if this is important, but I also get complete freezes of my box somtimes and I don't know if there is a connection between this two things Here are some additional information: # cat /dev/sndstat FreeBSD Audio Driver (newpcm) Installed devices: pcm0: Creative EMU10K1 at io 0xdf80 irq 9 (4p/2r/0v channels duplex default) # uname -a FreeBSD mephisto.cthulhu.net 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Thu Dec 13 17:48:44 CET 2001 *cut* my dmesg ouput is attached. if this is irrelevant please ignore this mail and sorry for my bad english, it isn't my native language ... Christopher Sharp -- FreeBSD the Power for Everything ! Christopher Sharp [EMAIL PROTECTED] 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 5.0-CURRENT #0: Thu Dec 13 17:48:44 CET 2001 [EMAIL PROTECTED]:/usr/src/sys/i386/compile/KERNEL Preloaded elf kernel /boot/kernel/kernel at 0xc054b000. Timecounter i8254 frequency 1193182 Hz Timecounter TSC frequency 350798022 Hz CPU: AMD-K6(tm) 3D processor (350.80-MHz 586-class CPU) Origin = AuthenticAMD Id = 0x58c Stepping = 12 Features=0x8021bfFPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX AMD Features=0x8800SYSCALL,3DNow! real memory = 268435456 (262144K bytes) avail memory = 255389696 (249404K bytes) K6-family MTRR support enabled (2 registers) Using $PIR table, 7 entries at 0xc00f7c00 npx0: math processor on motherboard npx0: INT 16 interface pcib0: AcerLabs M1541 (Aladdin-V) PCI host bridge at pcibus 0 on motherboard pci0: PCI bus on pcib0 pcib1: PCI-PCI bridge at device 1.0 on pci0 pci1: PCI bus on pcib1 pci1: display, VGA at device 0.0 (no driver attached) pci0: bridge, PCI-unknown at device 3.0 (no driver attached) isab0: PCI-ISA bridge at device 7.0 on pci0 isa0: ISA bus on isab0 ahc0: Adaptec 2940 Ultra SCSI adapter port 0xdc00-0xdcff mem 0xd000-0xdfff irq 10 at device 14.0 on pci0 aic7880: Ultra Wide Channel A, SCSI Id=7, 16/255 SCBs atapci0: AcerLabs Aladdin ATA33 controller port 0xffa0-0xffaf irq 0 at device 15.0 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 pcm0: Creative EMU10K1 port 0xdf80-0xdf9f irq 9 at device 16.0 on pci0 ed0: NE2000 PCI Ethernet (RealTek 8029) port 0xdf40-0xdf5f irq 5 at device 18.0 on pci0 ed0: address 00:50:ba:bc:f0:77, type NE2000 (16 bit) ata-: ata0 already exists, skipping it ata-: ata1 already exists, skipping it ed-: ed0 already exists, skipping it sc-: sc0 already exists, skipping it vga-: vga0 already exists, skipping it orm0: Option ROMs at iomem 0xc-0xc9fff,0xcc000-0xcc7ff on isa0 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 IntelliMouse Explorer, device ID 4 fdc0: NEC 72065B or clone at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 pmtimer0 on isa0 ppc0: parallel port not found. 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 vga0: Generic ISA VGA at port 0x3c0-0x3df iomem 0xa-0xb on isa0 unknown: PNP0303 can't assign resources unknown: PNP0a03 can't assign resources unknown: PNP0501 can't assign resources unknown: PNP0501 can't assign resources unknown: PNP0700 can't assign resources unknown: PNP0f13 can't assign resources ad0: 28629MB QUANTUM FIREBALLlct20 30 [58168/16/63] at ata0-master UDMA33 acd0: CDROM CRD-8320B at ata1-slave PIO4 Waiting 15 seconds for SCSI devices to settle Mounting root from ufs:/dev/ad0s2a cd0 at ahc0 bus 0 target 6 lun 0 cd0: YAMAHA CRW4416S 1.0h Removable CD-ROM SCSI-2 device cd0: 8.333MB/s transfers (8.333MHz, offset 15) cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed
pcm: lock order reversal box freezes
Hello everybody, over the last few days I get this lock order reversal and also my box freezes somtimes. I don't know if there is a connection but I think it might be of interest. If not ignore this mail ... This I see in /var/log/messages: Dec 15 16:47:54 mephisto kernel: lock order reversal Dec 15 16:47:54 mephisto kernel: 1st 0xc390e640 pcm0 @ ../../../dev/sound/pcm/so und.c:132 Dec 15 16:47:54 mephisto kernel: 2nd 0xc390e500 pcm0:play:0 @ ../../../dev/sound /pcm/sound.c:189 My X freezes very often in the last time , and I have to kill the server, but somtimes the hole box freezes and i have to do a hard reset. This is the only thing I found in the logs. here is some additional information: #cat /dev/sndstat FreeBSD Audio Driver (newpcm) Installed devices: pcm0: Creative EMU10K1 at io 0xdf80 irq 9 (4p/2r/0v channels duplex default) uname output: FreeBSD mephisto.cthulhu.net 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Thu Dec 13 17:48:44 CET 2001 my dmesg ouput is attached. I hope you can help me. I'm sorry for my bad english, but it is not my native language. Christopher Sharp -- FreeBSD the Power for Everything ! Christopher Sharp [EMAIL PROTECTED] 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 5.0-CURRENT #0: Thu Dec 13 17:48:44 CET 2001 [EMAIL PROTECTED]:/usr/src/sys/i386/compile/KERNEL Preloaded elf kernel /boot/kernel/kernel at 0xc054b000. Timecounter i8254 frequency 1193182 Hz Timecounter TSC frequency 350798022 Hz CPU: AMD-K6(tm) 3D processor (350.80-MHz 586-class CPU) Origin = AuthenticAMD Id = 0x58c Stepping = 12 Features=0x8021bfFPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX AMD Features=0x8800SYSCALL,3DNow! real memory = 268435456 (262144K bytes) avail memory = 255389696 (249404K bytes) K6-family MTRR support enabled (2 registers) Using $PIR table, 7 entries at 0xc00f7c00 npx0: math processor on motherboard npx0: INT 16 interface pcib0: AcerLabs M1541 (Aladdin-V) PCI host bridge at pcibus 0 on motherboard pci0: PCI bus on pcib0 pcib1: PCI-PCI bridge at device 1.0 on pci0 pci1: PCI bus on pcib1 pci1: display, VGA at device 0.0 (no driver attached) pci0: bridge, PCI-unknown at device 3.0 (no driver attached) isab0: PCI-ISA bridge at device 7.0 on pci0 isa0: ISA bus on isab0 ahc0: Adaptec 2940 Ultra SCSI adapter port 0xdc00-0xdcff mem 0xd000-0xdfff irq 10 at device 14.0 on pci0 aic7880: Ultra Wide Channel A, SCSI Id=7, 16/255 SCBs atapci0: AcerLabs Aladdin ATA33 controller port 0xffa0-0xffaf irq 0 at device 15.0 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 pcm0: Creative EMU10K1 port 0xdf80-0xdf9f irq 9 at device 16.0 on pci0 ed0: NE2000 PCI Ethernet (RealTek 8029) port 0xdf40-0xdf5f irq 5 at device 18.0 on pci0 ed0: address 00:50:ba:bc:f0:77, type NE2000 (16 bit) ata-: ata0 already exists, skipping it ata-: ata1 already exists, skipping it ed-: ed0 already exists, skipping it sc-: sc0 already exists, skipping it vga-: vga0 already exists, skipping it orm0: Option ROMs at iomem 0xc-0xc9fff,0xcc000-0xcc7ff on isa0 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 IntelliMouse Explorer, device ID 4 fdc0: NEC 72065B or clone at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 pmtimer0 on isa0 ppc0: parallel port not found. 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 vga0: Generic ISA VGA at port 0x3c0-0x3df iomem 0xa-0xb on isa0 unknown: PNP0303 can't assign resources unknown: PNP0a03 can't assign resources unknown: PNP0501 can't assign resources unknown: PNP0501 can't assign resources unknown: PNP0700 can't assign resources unknown: PNP0f13 can't assign resources ad0: 28629MB QUANTUM FIREBALLlct20 30 [58168/16/63] at ata0-master UDMA33 acd0: CDROM CRD-8320B at ata1-slave PIO4 Waiting 15 seconds for SCSI devices to settle Mounting root from ufs:/dev/ad0s2a cd0 at ahc0 bus 0 target 6 lun 0 cd0: YAMAHA CRW4416S 1.0h Removable CD-ROM SCSI-2 device cd0: 8.333MB/s transfers (8.333MHz, offset 15) cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed
