-----Original Message-----
From: Yanjiang Jin [mailto:yanjiang....@hxt-semitech.com]
Sent: Thursday, December 20, 2018 2:33 AM
To: don.br...@microsemi.com; j...@linux.vnet.ibm.com;
martin.peter...@oracle.com; yanjiang....@hxt-semitech.com
Cc: yu.zh...@hxt-semitech.com; jinyanji...@gmail.com;
esc.storage...@microsemi.com; linux-scsi@vger.kernel.org;
linux-ker...@vger.kernel.org
Subject: [PATCH] scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
We must free all irqs during shutdown, else kexec's 2nd kernel would hang in
pqi_wait_for_completion_io() as below:
Call trace:
pqi_wait_for_completion_io
pqi_submit_raid_request_
This happens only in the following combinations:
1. smartpqi is built as module, not built-in; 2. We have a disk connected to
smartpqi card; 3. Both kexec's 1st and 2nd kernels use this disk as Rootfs'
mount point.
Signed-off-by: Yanjiang Jin <yanjiang....@hxt-semitech.com>
Thank-you for your patch.
Acked-by: Don Brace <don.br...@microsemi.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c
b/drivers/scsi/smartpqi/smartpqi_init.c
index a25a07a..55c1d82 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6670,6 +6670,7 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
* storage.
*/
rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
+ pqi_free_interrupts(ctrl_info);
pqi_reset(ctrl_info);
if (rc == 0)
return;
--
1.8.3.1
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