Qingqing Zhou <[EMAIL PROTECTED]> writes: > There is no LWLock protecting the spinlock in UnpinBuffer(),
I don't believe this is necessary, and if it is necessary the patch is wrong anyway. Because the code uses _NoHoldoff, there won't be any check of InterruptPending in that segment of code. Furthermore, any callers who don't have their own interrupt holdoff in force are probably broken --- it's unlikely that the state of bufmgr is globally correct if the caller of UnpinBuffer loses control. Exactly which path of control are you worried about? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend