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Code Issues Releases Activity

Fix "Lock ACPI PCI link not exclusively locked

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@sys/dev/acpica/acpi_pci_link.c:153" panic by backing out rev 1.37 in the SMP
case.  It appears that on a dual-proc machine the assertions in the rev 1.37
commit log hold true.
This commit is contained in:
David E. O'Brien 2004-12-01 04:34:08 +00:00
parent 69fb23b73d
commit 0297d51ea3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=138248
1 changed files with 12 additions and 0 deletions
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12
sys/dev/acpica/acpi_pci_link.c
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@ -270,6 +270,9 @@ acpi_pci_link_dump(struct acpi_pci_link_softc *sc)
struct link *link;
int i, j;
#ifdef SMP
ACPI_SERIAL_ASSERT(pci_link);
#endif
printf("Index IRQ Rtd Ref IRQs\n");
for (i = 0; i < sc->pl_num_links; i++) {
link = &sc->pl_links[i];
@ -293,6 +296,9 @@ acpi_pci_link_attach(device_t dev)
int prslinks;
sc = device_get_softc(dev);
#ifdef SMP
ACPI_SERIAL_BEGIN(pci_link);
#endif
/*
* Count the number of current resources so we know how big of
@ -377,9 +383,15 @@ acpi_pci_link_attach(device_t dev)
device_printf(dev, "Links after disable:\n");
acpi_pci_link_dump(sc);
}
#ifdef SMP
ACPI_SERIAL_END(pci_link);
#endif
return (0);
fail:
#ifdef SMP
ACPI_SERIAL_END(pci_link);
#endif
for (i = 0; i < sc->pl_num_links; i++)
if (sc->pl_links[i].l_irqs != NULL)
free(sc->pl_links[i].l_irqs, M_PCI_LINK);