我有以下锁定。这是否表明 slic_test pid 5207 是违规者,还是仅表明因为内核中的当前宏仍指向使系统调用进入我的驱动程序的用户空间进程?此外 - irq event stamp 0 ... irq event stamp 究竟代表什么?它不能是自启动以来的中断数......在 88798 秒后肯定有超过 0 个......
系统是禁用 CONFIG_SMP 的单处理器。
[88798.449628] BUG: soft lockup - CPU#0 stuck for 61s! [slic_test:5207]
[88798.449628] Modules linked in: slic_xxxx leds_xxxx vortex86_spi dm_mirror dm_log dm_multipath dm_mod ohci_hcd ehci_hcd r6040 vortex86_wdt vortex86_gpio [last un]
[88798.449628] irq event stamp: 0
[88798.449628] hardirqs last enabled at (0): [<00000000>] 0x0
[88798.449628] hardirqs last disabled at (0): [<c0115563>] copy_process+0x233/0x1090
[88798.449628] softirqs last enabled at (0): [<c0115563>] copy_process+0x233/0x1090
[88798.449628] softirqs last disabled at (0): [<00000000>] 0x0
[88798.449628]
[88798.449628] Pid: 5207, comm: slic_test Not tainted (2.6.27.62 #11)
[88798.449628] EIP: 0060:[<c011b6b5>] EFLAGS: 00000246 CPU: 0
[88798.449628] EIP is at __do_softirq+0x45/0xb0
[88798.449628] EAX: 00000000 EBX: 00000082 ECX: 00000001 EDX: dfac5080
[88798.449628] ESI: c0696120 EDI: 0000000a EBP: df3bdf8c ESP: df3bdf80
[88798.449628] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[88798.449628] CR0: 8005003b CR2: b7622780 CR3: 1f3c8000 CR4: 00000000
[88798.449628] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[88798.449628] DR6: ffff0ff0 DR7: 00000400
[88798.449628] [<c011b766>] do_softirq+0x46/0x50
[88798.449628] [<c011bad5>] irq_exit+0x45/0x50
[88798.449628] [<c01057ba>] do_IRQ+0x4a/0x90
[88798.449628] [<c0103e68>] common_interrupt+0x28/0x30
[88798.449628] =======================