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Filename Latest commit message Latest commit date
Mohit Khanna 137b97dd46 qcacld-3.0: Fix for IBSS lock-up issue 
During IBSS session tear down, we are hitting a lockup. The issue is
seen as the pdev->peer_ref_mutex is being taken up twice in
ol_txrx_remove_peers_for_vdev and ol_txrx_peer_unref_delete. The later
function gets invoked by the former and hence we are stuck while trying
to acquire the spinlock, the second time.

Fix issue by releasing peer_ref_mutex lock before invoking
callback (wma_remove_peer) in ol_txrx_remove_peers_for_vdev function.

The dmesg signature of the lock-up is as follows

1100.230392:   <2> [<ffffffc0002035a4>] el1_irq+0x64/0xd4
1100.235432:   <2> [<ffffffbffc17e890>]
ol_txrx_peer_unref_delete+0xc4/0x33c [wlan]
1100.242461:   <2> [<ffffffbffc17ecc8>] ol_txrx_peer_detach+0x1c0/0x1e0
[wlan]
1100.249020:   <2> [<ffffffbffc160914>] wma_remove_peer+0x7c/0x18c
[wlan]
1100.255141:   <2> [<ffffffbffc17dee4>]
ol_txrx_remove_peers_for_vdev+0x170/0x1b0 [wlan]
1100.262606:   <2> [<ffffffbffc16311c>]
wma_vdev_stop_resp_handler+0x204/0x460 [wlan]
1100.269816:   <2> [<ffffffbffc1886a8>] __wmi_control_rx+0x280/0x2c0
[wlan]
1100.276204:   <2> [<ffffffbffc188a34>] wmi_process_fw_event+0x8/0x14
[wlan]
1100.282595:   <2> [<ffffffbffc157054>] wma_mc_process_msg+0x80c/0x27fc
[wlan]
1100.289176:   <2> [<ffffffbffc13f238>] $x+0x190/0x3f4 [wlan]
1100.294115:   <2> [<ffffffc00023d7e8>] kthread+0xac/0xb8

CRs-Fixed: 1006847
Change-Id: Icedeb172bbd6736ab39343391ff0643ddd688444
2016-04-27 17:00:25 -07:00
config qcacld-3.0: Revert "qcacld-3.0: Enable LRO" 2016-04-20 22:24:48 -07:00
core qcacld-3.0: Fix for IBSS lock-up issue 2016-04-27 17:00:25 -07:00
target/inc qcacld-3.0: CL 1483121 - update fw common interface files 2016-04-20 22:22:20 -07:00
uapi/linux qcacld-3.0: Cleanup fastpath changes 2016-04-17 18:16:51 -07:00
Android.mk qcacld-3.0: Add new method to build/use driver based on targets 2016-04-25 22:55:34 -07:00
Kbuild qcacld-3.0: Fix compilation errors for msmcobalt (2/2) 2016-04-25 22:56:07 -07:00
Kconfig qcacld-3.0: Enable packet tracker for non performance builds 2016-04-25 22:55:29 -07:00
Makefile qcacld-3.0: Initial snapshot of ihelium wlan driver 2015-11-17 17:52:53 -08:00
README.txt Initial readme for WLAN Host Driver for iHelium 2015-04-06 11:45:23 -07:00

README.txt 

This is CNSS WLAN Host Driver for products starting from iHelium