Linux内核中为了方便方便标记 bug,提供断言并输出信息,最常用的两个API是 WARN_ON() 和BUG_ON()。当调用这两个宏的时候,它们会引发 OOPS,导致栈的回溯和错误消息的打印,方便我们底层开发者查看日志进行定位调试问题,所以也是我们要掌握的调试内容,本篇以做实验为目的来给大家分享下BUG_ON(),WARN_ON(),dump_...
BUG_ON在代码中我们可以这么做 #include<linux/kernel.h> voidfunction(){ // 代码逻辑 BUG_ON(some_critical_condition);// 如果some_critical_condition为true,则触发BUG } 你会发现BUG_ON比BUG内部多了条件参数传入判断,BUG_ON宏的典型用法是检查某个条件是否为真,如果为真就触发一个BUG,终止内核的运行。
@@ -305,9 +305,9 @@ void ilk_update_display_irq(struct drm_i915_private *dev_priv, lockdep_assert_held(&dev_priv->irq_lock); WARN_ON(enabled_irq_mask & ~interrupt_mask); drm_WARN_ON(&dev_priv->drm, enabled_irq_mask & ~interrupt_mask); if (WARN_ON(!intel_irqs_enabled(dev_...
none:/* re-enable interrupts here since we don't have anything to service. *//* only Re-enable if disabled by irq and no schedules tasklet. */if(test_bit(STATUS_INT_ENABLED, &trans->shrd->status) && !trans_pcie->inta) iwl_enable_interrupts(trans); spin_unlock_irqrestore(&trans->sh...
示例1: migrate_one_irq ▲点赞 7▼ staticboolmigrate_one_irq(struct irq_desc *desc){structirq_data*d=irq_desc_get_irq_data(desc);conststructcpumask*affinity=d->common->affinity;structirq_chip*c;boolret =false;/* * If this is a per-CPU interrupt, or the affinity does not ...
{ - die "$P: Invalid color mode: $color\n"; -} - # skip TAB size 1 to avoid additional checks on $tabsize - 1 die "$P: Invalid TAB size: $tabsize\n" if ($tabsize < 2); @@ -383,6 +492,7 @@ sub hash_show_words { # We need \b after 'init'...
# <file system> <mount point> <type> <options> <dump> <pass> /dev/pve/root / ext4 errors=remount-ro 0 1 UUID=3786-F146 /boot/efi vfat defaults 0 1 /dev/pve/swap none swap sw 0 0 proc /proc proc defaults 0 0 mount sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatim...
Describe the bug Problem description: I'm having random problems with my external harddisk (HDD) connected to my Raspberry Pi 4B. When accessing the HDD with samba, or by doing a git push, the operation sometimes freezes on my computer o...
spin_unlock_irqrestore(&trans->shrd->lock, flags);returnIRQ_NONE; } 开发者ID:PDi-Communication-Systems-Inc,项目名称:lollipop_hardware_imx,代码行数:71,代码来源:iwl-trans-pcie-rx.c 示例13: iwl_check_rxon_cmd ▲点赞 1▼ /* validate RXON structure is valid */intiwl_check_rxon_cmd(struc...
* If interrupts were enabled whilst running a wait instruction on a * non-coherent core then the VPE may end up processing interrupts * whilst non-coherent. That would be bad. */if(cpu_wait == r4k_wait_irqoff) set_bit(CPS_PM_NC_WAIT, state_support);elsepr_warn("pm-cps: non-coher...