From: Thomas Gleixner
commit 9ec1882df2 (tty: serial: imx: console write routing is unsafe
on SMP) introduced a recursive locking bug in imx_console_write().
The callchain is:
imx_rxint()
spin_lock_irqsave(>port.lock,flags);
...
uart_handle_sysrq_char();
sysrq_function();
From: Thomas Gleixner
commit 9ec1882df2 (tty: serial: imx: console write routing is unsafe
on SMP) introduced a recursive locking bug in imx_console_write().
The callchain is:
imx_rxint()
spin_lock_irqsave(>port.lock,flags);
...
uart_handle_sysrq_char();
sysrq_function();
From: Thomas Gleixner t...@linutronix.de
commit 9ec1882df2 (tty: serial: imx: console write routing is unsafe
on SMP) introduced a recursive locking bug in imx_console_write().
The callchain is:
imx_rxint()
spin_lock_irqsave(sport-port.lock,flags);
...
uart_handle_sysrq_char();
From: Thomas Gleixner t...@linutronix.de
commit 9ec1882df2 (tty: serial: imx: console write routing is unsafe
on SMP) introduced a recursive locking bug in imx_console_write().
The callchain is:
imx_rxint()
spin_lock_irqsave(sport-port.lock,flags);
...
uart_handle_sysrq_char();
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