Date: Sun, 29 Mar 2009 16:29:56 +1100 From: Lawrence Stewart <lstewart@room52.net> To: mav@freebsd.org Cc: freebsd-current@freebsd.org Subject: kernel panic with snd_hda "panic: Duplicate free of item 0xffffff00025f8c00 from zone 0xffffff00b697d400(1024)" Message-ID: <49CF0754.9070907@room52.net>
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Hi Alexander and all,
I'm getting a kernel panic with the snd_hda driver on fresh 8-CURRENT
amd64 (r190518). I received this panic the other day when loading the
module from the command line on a slightly older kernel revision (I
think it was r190437). After putting the module load into
/boot/loader.conf, the problem didn't occur again and sound worked just
fine on subsequent reboots.
A few minutes ago I installed the new r190518 kernel and now it panics
consistently with the same message every time. It also panics if I
unload the module at the loader prompt, boot the kernel and then kldload
on the command line.
Hardware is a Toshiba Portege R600 laptop. Details below are hand
transcribed as the machine doesn't have a serial port.
Relevant bit of verbose boot message when it panics:
hdac0: <Intel 82801I High Definition Audio Controller> at device 27.0 on
pci0
hdac0: HDA driver revision: 20090316_0130
hdac0: Lazy allocation of 0x4000 bytes rid 0x10 type 3 at 0xb69a4000
hdac0: Reserved 0x4000 bytes for rid 0x10 type 3 at 0xb69a4000
hdac0: attempting to allocate 1 MSI vectors (1 supported)
hdac0: using IRQ 257 for MSI
msi: Assinging MSI IRQ 257 to local APIC 0 vector 53
hdac0: [MPSAFE]
hdac0: [ITHREAD]
hdac0: hdac_get_capabilities: Invalid corb size (0)
device_attach: hdac0 attach returned 6
Slab at 0xffffff00025d5b18, freei 3 = 0.
panic: Duplicate free of item 0xffffff00025f8c00 from zone
0xffffff00b697d400(1024)
Backtrace at the ddb prompt looks like this:
db> bt
kdb_enter()+0x3d
panic()+0x17b
uma_dbg_free()+0x171
uma_zfree_arg()+0x68
free()+0xbd
device_set_driver()+0x8e
device_attach()+0x19b
bus_generic_attach()+0x1a
acpi_pci_attach()+0x147
device_attach()+0x69
bus_generic_attach()+0x1a
acpi_pcib_attach()+0x1a7
acpi_pcib_acpi_attach()+0x1a5
device_attach()+0x69
bus_generic_attach()+0x1a
acpi_attach()+0x9e4
device_attach()+0x69
bus_generic_attach()+0x1a
device_attach()+0x69
root_bus_configure()+0x28
configure()+0xa
mi_startup()+0x59
btext()+0x2c
Relevant pciconf output:
none1@pci0:0:27:0: class=0x040300 card=0x00011179 chip=0x293e8086
rev=0x03 hdr=0x00
vendor = 'Intel Corporation'
device = '82801IB/IR/IH (ICH9 Family) HD Audio Controller'
class = multimedia
subclass = HDA
cap 01[50] = powerspec 2 supports D0 D3 current D0
cap 05[60] = MSI supports 1 message, 64 bit
cap 10[70] = PCI-Express 1 type 0
Any idea what the issue(s) might be?
Cheers,
Lawrence
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