Date: Mon, 02 Jan 2006 10:28:56 -0800 From: Julian Elischer <julian@elischer.org> To: FreeBSD Multimedia <freebsd-multimedia@freebsd.org> Subject: recent Maestro messages. Message-ID: <43B970E8.5010406@elischer.org>
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Recently the MAestro attach code has started to spew out the following during boot. someone who knows pcm_addchan() should look to see it the locking in agg_attach() can be adjusted to avoid this error safely. ===================== malloc(M_WAITOK) of "256", forcing M_NOWAIT with the following non-sleepable loc ks held: exclusive sleep mutex ESS Technology Maestro-2E (hardware status lock) r = 0 (0x c228be28) locked @ /usr/src/sys/modules/sound/driver/maestro/../../../../dev/sou nd/pci/maestro.c:270 KDB: stack backtrace: kdb_backtrace(1,e0,c10653c0,4,c0c209ec) at kdb_backtrace+0x29 witness_warn(5,0,c089b071,c0840681,e0) at witness_warn+0x192 uma_zalloc_arg(c10653c0,0,502) at uma_zalloc_arg+0x41 malloc(d8,c0907860,502,c0c20a38,c062efe8) at malloc+0xb2 devfs_alloc(c22c3800,0,c22c3780,c0c20a60,c062f0d4) at devfs_alloc+0x17 make_dev_credv(c0ae0420,30004,0,0,0) at make_dev_credv+0x34 make_dev(c0ae0420,30004,0,0,1b6) at make_dev+0x20 pcm_chn_add(c228bc00,c22fad80,c228be00,0,0) at pcm_chn_add+0x14e pcm_addchan(c22ba600,1,c0ac4ca0,c228be00,c228be28) at pcm_addchan+0x36 agg_attach(c22ba600) at agg_attach+0x553 device_attach(c22ba600,c22ba880,c22ba600,c22ba380,0) at device_attach+0x58 device_probe_and_attach(c22ba600) at device_probe_and_attach+0xe0 bus_generic_attach(c22ba380,6,c229d7c0,1,c0b2c39c) at bus_generic_attach+0x16 acpi_pci_attach(c22ba380) at acpi_pci_attach+0xd0 device_attach(c22ba380,c228acf0,c22ba380,0,c223ea80) at device_attach+0x58 device_probe_and_attach(c22ba380) at device_probe_and_attach+0xe0 bus_generic_attach(c223ea80,c223ea80,0,c229d7c0,c22b5480) at bus_generic_attach+ 0x16 acpi_pcib_attach(c223ea80,c22b5494,0,c0c20c58,c066e3cc) at acpi_pcib_attach+0x12 f acpi_pcib_acpi_attach(c223ea80) at acpi_pcib_acpi_attach+0xcf device_attach(c223ea80,c0c20ca0,c223ea80,c22b2c80,c223d600) at device_attach+0x5 8 device_probe_and_attach(c223ea80) at device_probe_and_attach+0xe0 bus_generic_attach(c223d600,103f,1016,c22a3468,4) at bus_generic_attach+0x16 acpi_attach(c223d600) at acpi_attach+0x631 device_attach(c223d600,0,c223d600,c223dd00,0) at device_attach+0x58 device_probe_and_attach(c223d600) at device_probe_and_attach+0xe0 bus_generic_attach(c223dd00,c223dd00,c223dd00,c0c20d40,c066a624) at bus_generic_ attach+0x16 nexus_attach(c223dd00) at nexus_attach+0x13 device_attach(c223dd00,c0951fb4,c223dd00,c0923ed0,c28000) at device_attach+0x58 device_probe_and_attach(c223dd00) at device_probe_and_attach+0xe0 root_bus_configure(c0c20d88,c062b006,0,c1ec00,c1e000) at root_bus_configure+0x16 configure(0,c1ec00,c1e000,0,c0446ce5) at configure+0x9 mi_startup() at mi_startup+0x96 begin() at begin+0x2c
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