hi, all
I think you have already known how to reproduce it. Let me still share
the debug patch to hit this printk issue in several seconds.
+static int auto_printk(void *data)
+{
+ int irq = (int)data;
+ char b[64] = {
+ [0 ... 61] = 'F',
+ '\n',
+
From: Pan Xinhui
printk can be called in any context, It's very useful to output debug
info.
But it might cause very bad issues on some special cases. For example,
some driver hit errors, and it dumps many messages like reg values, etc.
Sometimes, printk is called when irqs disabled. This is
From: Pan Xinhui xinhuix@intel.com
printk can be called in any context, It's very useful to output debug
info.
But it might cause very bad issues on some special cases. For example,
some driver hit errors, and it dumps many messages like reg values, etc.
Sometimes, printk is called when
hi, all
I think you have already known how to reproduce it. Let me still share
the debug patch to hit this printk issue in several seconds.
+static int auto_printk(void *data)
+{
+ int irq = (int)data;
+ char b[64] = {
+ [0 ... 61] = 'F',
+ '\n',
+
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