* [PATCH] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
@ 2020-02-14 3:42 ` Wen Gong
0 siblings, 0 replies; 4+ messages in thread
From: Wen Gong @ 2020-02-14 3:42 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, wgong
When use command to read values, it crashed.
command:
dd if=/sys/kernel/debug/ieee80211/phy0/ath10k/mem_value count=1 bs=4 skip=$((0x100233))
It will call to ath10k_sdio_hif_diag_read with address = 0x4008cc and buf_len = 4.
Then system crash:
[ 1786.013258] Unable to handle kernel paging request at virtual address ffffffc00bd45000
[ 1786.013273] Mem abort info:
[ 1786.013281] ESR = 0x96000045
[ 1786.013291] Exception class = DABT (current EL), IL = 32 bits
[ 1786.013299] SET = 0, FnV = 0
[ 1786.013307] EA = 0, S1PTW = 0
[ 1786.013314] Data abort info:
[ 1786.013322] ISV = 0, ISS = 0x00000045
[ 1786.013330] CM = 0, WnR = 1
[ 1786.013342] swapper pgtable: 4k pages, 39-bit VAs, pgdp = 000000008542a60e
[ 1786.013350] [ffffffc00bd45000] pgd=0000000000000000, pud=0000000000000000
[ 1786.013368] Internal error: Oops: 96000045 [#1] PREEMPT SMP
[ 1786.013609] Process swapper/0 (pid: 0, stack limit = 0x0000000084b153c6)
[ 1786.013623] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.86 #137
[ 1786.013631] Hardware name: MediaTek krane sku176 board (DT)
[ 1786.013643] pstate: 80000085 (Nzcv daIf -PAN -UAO)
[ 1786.013662] pc : __memcpy+0x94/0x180
[ 1786.013678] lr : swiotlb_tbl_unmap_single+0x84/0x150
[ 1786.013686] sp : ffffff8008003c60
[ 1786.013694] x29: ffffff8008003c90 x28: ffffffae96411f80
[ 1786.013708] x27: ffffffae960d2018 x26: ffffff8019a4b9a8
[ 1786.013721] x25: 0000000000000000 x24: 0000000000000001
[ 1786.013734] x23: ffffffae96567000 x22: 00000000000051d4
[ 1786.013747] x21: 0000000000000000 x20: 00000000fe6e9000
[ 1786.013760] x19: 0000000000000004 x18: 0000000000000020
[ 1786.013773] x17: 0000000000000001 x16: 0000000000000000
[ 1786.013787] x15: 00000000ffffffff x14: 00000000000044c0
[ 1786.013800] x13: 0000000000365ba4 x12: 0000000000000000
[ 1786.013813] x11: 0000000000000001 x10: 00000037be6e9000
[ 1786.013826] x9 : ffffffc940000000 x8 : 000000000bd45000
[ 1786.013839] x7 : 0000000000000000 x6 : ffffffc00bd45000
[ 1786.013852] x5 : 0000000000000000 x4 : 0000000000000000
[ 1786.013865] x3 : 0000000000000c00 x2 : 0000000000000004
[ 1786.013878] x1 : fffffff7be6e9004 x0 : ffffffc00bd45000
[ 1786.013891] Call trace:
[ 1786.013903] __memcpy+0x94/0x180
[ 1786.013914] unmap_single+0x6c/0x84
[ 1786.013925] swiotlb_unmap_sg_attrs+0x54/0x80
[ 1786.013938] __swiotlb_unmap_sg_attrs+0x8c/0xa4
[ 1786.013952] msdc_unprepare_data+0x6c/0x84
[ 1786.013963] msdc_request_done+0x58/0x84
[ 1786.013974] msdc_data_xfer_done+0x1a0/0x1c8
[ 1786.013985] msdc_irq+0x12c/0x17c
[ 1786.013996] __handle_irq_event_percpu+0xe4/0x250
[ 1786.014006] handle_irq_event_percpu+0x28/0x68
[ 1786.014015] handle_irq_event+0x48/0x78
[ 1786.014026] handle_fasteoi_irq+0xd0/0x1a0
[ 1786.014039] __handle_domain_irq+0x84/0xc4
[ 1786.014050] gic_handle_irq+0x124/0x1a4
[ 1786.014059] el1_irq+0xb0/0x128
[ 1786.014072] cpuidle_enter_state+0x298/0x328
[ 1786.014082] cpuidle_enter+0x30/0x40
[ 1786.014094] do_idle+0x190/0x268
[ 1786.014104] cpu_startup_entry+0x24/0x28
[ 1786.014116] rest_init+0xd4/0xe0
[ 1786.014126] start_kernel+0x30c/0x38c
[ 1786.014139] Code: f8408423 f80084c3 36100062 b8404423 (b80044c3)
[ 1786.014150] ---[ end trace 3b02ddb698ea69ee ]---
[ 1786.015415] Kernel panic - not syncing: Fatal exception in interrupt
[ 1786.015433] SMP: stopping secondary CPUs
[ 1786.015447] Kernel Offset: 0x2e8d200000 from 0xffffff8008000000
[ 1786.015458] CPU features: 0x0,2188200c
[ 1786.015466] Memory Limit: none
For sdio chip, it need the memory which is kmalloc, if it is
vmalloc from ath10k_mem_value_read, then it have a memory error.
kzalloc of ath10k_sdio_hif_diag_read32 is the correct type, so
add kzalloc in ath10k_sdio_hif_diag_read to replace the buffer
which is vmalloc from ath10k_mem_value_read.
This patch only effect sdio chip.
Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
---
drivers/net/wireless/ath/ath10k/sdio.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 7b894dcaad2e..5b9bc72f4895 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -1635,23 +1635,33 @@ static int ath10k_sdio_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
size_t buf_len)
{
int ret;
+ void *mem;
+
+ mem = kzalloc(buf_len, GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
/* set window register to start read cycle */
ret = ath10k_sdio_write32(ar, MBOX_WINDOW_READ_ADDR_ADDRESS, address);
if (ret) {
ath10k_warn(ar, "failed to set mbox window read address: %d", ret);
- return ret;
+ goto out;
}
/* read the data */
- ret = ath10k_sdio_read(ar, MBOX_WINDOW_DATA_ADDRESS, buf, buf_len);
+ ret = ath10k_sdio_read(ar, MBOX_WINDOW_DATA_ADDRESS, mem, buf_len);
if (ret) {
ath10k_warn(ar, "failed to read from mbox window data address: %d\n",
ret);
- return ret;
+ goto out;
}
- return 0;
+ memcpy(buf, mem, buf_len);
+
+out:
+ kfree(mem);
+
+ return ret;
}
static int ath10k_sdio_hif_diag_read32(struct ath10k *ar, u32 address,
--
2.23.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
@ 2020-02-14 3:42 ` Wen Gong
0 siblings, 0 replies; 4+ messages in thread
From: Wen Gong @ 2020-02-14 3:42 UTC (permalink / raw)
To: ath10k; +Cc: linux-wireless, wgong
When use command to read values, it crashed.
command:
dd if=/sys/kernel/debug/ieee80211/phy0/ath10k/mem_value count=1 bs=4 skip=$((0x100233))
It will call to ath10k_sdio_hif_diag_read with address = 0x4008cc and buf_len = 4.
Then system crash:
[ 1786.013258] Unable to handle kernel paging request at virtual address ffffffc00bd45000
[ 1786.013273] Mem abort info:
[ 1786.013281] ESR = 0x96000045
[ 1786.013291] Exception class = DABT (current EL), IL = 32 bits
[ 1786.013299] SET = 0, FnV = 0
[ 1786.013307] EA = 0, S1PTW = 0
[ 1786.013314] Data abort info:
[ 1786.013322] ISV = 0, ISS = 0x00000045
[ 1786.013330] CM = 0, WnR = 1
[ 1786.013342] swapper pgtable: 4k pages, 39-bit VAs, pgdp = 000000008542a60e
[ 1786.013350] [ffffffc00bd45000] pgd=0000000000000000, pud=0000000000000000
[ 1786.013368] Internal error: Oops: 96000045 [#1] PREEMPT SMP
[ 1786.013609] Process swapper/0 (pid: 0, stack limit = 0x0000000084b153c6)
[ 1786.013623] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.86 #137
[ 1786.013631] Hardware name: MediaTek krane sku176 board (DT)
[ 1786.013643] pstate: 80000085 (Nzcv daIf -PAN -UAO)
[ 1786.013662] pc : __memcpy+0x94/0x180
[ 1786.013678] lr : swiotlb_tbl_unmap_single+0x84/0x150
[ 1786.013686] sp : ffffff8008003c60
[ 1786.013694] x29: ffffff8008003c90 x28: ffffffae96411f80
[ 1786.013708] x27: ffffffae960d2018 x26: ffffff8019a4b9a8
[ 1786.013721] x25: 0000000000000000 x24: 0000000000000001
[ 1786.013734] x23: ffffffae96567000 x22: 00000000000051d4
[ 1786.013747] x21: 0000000000000000 x20: 00000000fe6e9000
[ 1786.013760] x19: 0000000000000004 x18: 0000000000000020
[ 1786.013773] x17: 0000000000000001 x16: 0000000000000000
[ 1786.013787] x15: 00000000ffffffff x14: 00000000000044c0
[ 1786.013800] x13: 0000000000365ba4 x12: 0000000000000000
[ 1786.013813] x11: 0000000000000001 x10: 00000037be6e9000
[ 1786.013826] x9 : ffffffc940000000 x8 : 000000000bd45000
[ 1786.013839] x7 : 0000000000000000 x6 : ffffffc00bd45000
[ 1786.013852] x5 : 0000000000000000 x4 : 0000000000000000
[ 1786.013865] x3 : 0000000000000c00 x2 : 0000000000000004
[ 1786.013878] x1 : fffffff7be6e9004 x0 : ffffffc00bd45000
[ 1786.013891] Call trace:
[ 1786.013903] __memcpy+0x94/0x180
[ 1786.013914] unmap_single+0x6c/0x84
[ 1786.013925] swiotlb_unmap_sg_attrs+0x54/0x80
[ 1786.013938] __swiotlb_unmap_sg_attrs+0x8c/0xa4
[ 1786.013952] msdc_unprepare_data+0x6c/0x84
[ 1786.013963] msdc_request_done+0x58/0x84
[ 1786.013974] msdc_data_xfer_done+0x1a0/0x1c8
[ 1786.013985] msdc_irq+0x12c/0x17c
[ 1786.013996] __handle_irq_event_percpu+0xe4/0x250
[ 1786.014006] handle_irq_event_percpu+0x28/0x68
[ 1786.014015] handle_irq_event+0x48/0x78
[ 1786.014026] handle_fasteoi_irq+0xd0/0x1a0
[ 1786.014039] __handle_domain_irq+0x84/0xc4
[ 1786.014050] gic_handle_irq+0x124/0x1a4
[ 1786.014059] el1_irq+0xb0/0x128
[ 1786.014072] cpuidle_enter_state+0x298/0x328
[ 1786.014082] cpuidle_enter+0x30/0x40
[ 1786.014094] do_idle+0x190/0x268
[ 1786.014104] cpu_startup_entry+0x24/0x28
[ 1786.014116] rest_init+0xd4/0xe0
[ 1786.014126] start_kernel+0x30c/0x38c
[ 1786.014139] Code: f8408423 f80084c3 36100062 b8404423 (b80044c3)
[ 1786.014150] ---[ end trace 3b02ddb698ea69ee ]---
[ 1786.015415] Kernel panic - not syncing: Fatal exception in interrupt
[ 1786.015433] SMP: stopping secondary CPUs
[ 1786.015447] Kernel Offset: 0x2e8d200000 from 0xffffff8008000000
[ 1786.015458] CPU features: 0x0,2188200c
[ 1786.015466] Memory Limit: none
For sdio chip, it need the memory which is kmalloc, if it is
vmalloc from ath10k_mem_value_read, then it have a memory error.
kzalloc of ath10k_sdio_hif_diag_read32 is the correct type, so
add kzalloc in ath10k_sdio_hif_diag_read to replace the buffer
which is vmalloc from ath10k_mem_value_read.
This patch only effect sdio chip.
Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.
Signed-off-by: Wen Gong <wgong@codeaurora.org>
---
drivers/net/wireless/ath/ath10k/sdio.c | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 7b894dcaad2e..5b9bc72f4895 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -1635,23 +1635,33 @@ static int ath10k_sdio_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
size_t buf_len)
{
int ret;
+ void *mem;
+
+ mem = kzalloc(buf_len, GFP_KERNEL);
+ if (!mem)
+ return -ENOMEM;
/* set window register to start read cycle */
ret = ath10k_sdio_write32(ar, MBOX_WINDOW_READ_ADDR_ADDRESS, address);
if (ret) {
ath10k_warn(ar, "failed to set mbox window read address: %d", ret);
- return ret;
+ goto out;
}
/* read the data */
- ret = ath10k_sdio_read(ar, MBOX_WINDOW_DATA_ADDRESS, buf, buf_len);
+ ret = ath10k_sdio_read(ar, MBOX_WINDOW_DATA_ADDRESS, mem, buf_len);
if (ret) {
ath10k_warn(ar, "failed to read from mbox window data address: %d\n",
ret);
- return ret;
+ goto out;
}
- return 0;
+ memcpy(buf, mem, buf_len);
+
+out:
+ kfree(mem);
+
+ return ret;
}
static int ath10k_sdio_hif_diag_read32(struct ath10k *ar, u32 address,
--
2.23.0
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
2020-02-14 3:42 ` Wen Gong
(?)
@ 2020-03-11 16:40 ` Kalle Valo
-1 siblings, 0 replies; 4+ messages in thread
From: Kalle Valo @ 2020-03-11 16:40 UTC (permalink / raw)
To: Wen Gong; +Cc: linux-wireless, ath10k
Wen Gong <wgong@codeaurora.org> wrote:
> When use command to read values, it crashed.
>
> command:
> dd if=/sys/kernel/debug/ieee80211/phy0/ath10k/mem_value count=1 bs=4 skip=$((0x100233))
>
> It will call to ath10k_sdio_hif_diag_read with address = 0x4008cc and buf_len = 4.
>
> Then system crash:
> [ 1786.013258] Unable to handle kernel paging request at virtual address ffffffc00bd45000
> [ 1786.013273] Mem abort info:
> [ 1786.013281] ESR = 0x96000045
> [ 1786.013291] Exception class = DABT (current EL), IL = 32 bits
> [ 1786.013299] SET = 0, FnV = 0
> [ 1786.013307] EA = 0, S1PTW = 0
> [ 1786.013314] Data abort info:
> [ 1786.013322] ISV = 0, ISS = 0x00000045
> [ 1786.013330] CM = 0, WnR = 1
> [ 1786.013342] swapper pgtable: 4k pages, 39-bit VAs, pgdp = 000000008542a60e
> [ 1786.013350] [ffffffc00bd45000] pgd=0000000000000000, pud=0000000000000000
> [ 1786.013368] Internal error: Oops: 96000045 [#1] PREEMPT SMP
> [ 1786.013609] Process swapper/0 (pid: 0, stack limit = 0x0000000084b153c6)
> [ 1786.013623] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.86 #137
> [ 1786.013631] Hardware name: MediaTek krane sku176 board (DT)
> [ 1786.013643] pstate: 80000085 (Nzcv daIf -PAN -UAO)
> [ 1786.013662] pc : __memcpy+0x94/0x180
> [ 1786.013678] lr : swiotlb_tbl_unmap_single+0x84/0x150
> [ 1786.013686] sp : ffffff8008003c60
> [ 1786.013694] x29: ffffff8008003c90 x28: ffffffae96411f80
> [ 1786.013708] x27: ffffffae960d2018 x26: ffffff8019a4b9a8
> [ 1786.013721] x25: 0000000000000000 x24: 0000000000000001
> [ 1786.013734] x23: ffffffae96567000 x22: 00000000000051d4
> [ 1786.013747] x21: 0000000000000000 x20: 00000000fe6e9000
> [ 1786.013760] x19: 0000000000000004 x18: 0000000000000020
> [ 1786.013773] x17: 0000000000000001 x16: 0000000000000000
> [ 1786.013787] x15: 00000000ffffffff x14: 00000000000044c0
> [ 1786.013800] x13: 0000000000365ba4 x12: 0000000000000000
> [ 1786.013813] x11: 0000000000000001 x10: 00000037be6e9000
> [ 1786.013826] x9 : ffffffc940000000 x8 : 000000000bd45000
> [ 1786.013839] x7 : 0000000000000000 x6 : ffffffc00bd45000
> [ 1786.013852] x5 : 0000000000000000 x4 : 0000000000000000
> [ 1786.013865] x3 : 0000000000000c00 x2 : 0000000000000004
> [ 1786.013878] x1 : fffffff7be6e9004 x0 : ffffffc00bd45000
> [ 1786.013891] Call trace:
> [ 1786.013903] __memcpy+0x94/0x180
> [ 1786.013914] unmap_single+0x6c/0x84
> [ 1786.013925] swiotlb_unmap_sg_attrs+0x54/0x80
> [ 1786.013938] __swiotlb_unmap_sg_attrs+0x8c/0xa4
> [ 1786.013952] msdc_unprepare_data+0x6c/0x84
> [ 1786.013963] msdc_request_done+0x58/0x84
> [ 1786.013974] msdc_data_xfer_done+0x1a0/0x1c8
> [ 1786.013985] msdc_irq+0x12c/0x17c
> [ 1786.013996] __handle_irq_event_percpu+0xe4/0x250
> [ 1786.014006] handle_irq_event_percpu+0x28/0x68
> [ 1786.014015] handle_irq_event+0x48/0x78
> [ 1786.014026] handle_fasteoi_irq+0xd0/0x1a0
> [ 1786.014039] __handle_domain_irq+0x84/0xc4
> [ 1786.014050] gic_handle_irq+0x124/0x1a4
> [ 1786.014059] el1_irq+0xb0/0x128
> [ 1786.014072] cpuidle_enter_state+0x298/0x328
> [ 1786.014082] cpuidle_enter+0x30/0x40
> [ 1786.014094] do_idle+0x190/0x268
> [ 1786.014104] cpu_startup_entry+0x24/0x28
> [ 1786.014116] rest_init+0xd4/0xe0
> [ 1786.014126] start_kernel+0x30c/0x38c
> [ 1786.014139] Code: f8408423 f80084c3 36100062 b8404423 (b80044c3)
> [ 1786.014150] ---[ end trace 3b02ddb698ea69ee ]---
> [ 1786.015415] Kernel panic - not syncing: Fatal exception in interrupt
> [ 1786.015433] SMP: stopping secondary CPUs
> [ 1786.015447] Kernel Offset: 0x2e8d200000 from 0xffffff8008000000
> [ 1786.015458] CPU features: 0x0,2188200c
> [ 1786.015466] Memory Limit: none
>
> For sdio chip, it need the memory which is kmalloc, if it is
> vmalloc from ath10k_mem_value_read, then it have a memory error.
> kzalloc of ath10k_sdio_hif_diag_read32 is the correct type, so
> add kzalloc in ath10k_sdio_hif_diag_read to replace the buffer
> which is vmalloc from ath10k_mem_value_read.
>
> This patch only effect sdio chip.
>
> Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.
>
> Signed-off-by: Wen Gong <wgong@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
402f2992b4d6 ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
--
https://patchwork.kernel.org/patch/11381643/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
2020-02-14 3:42 ` Wen Gong
(?)
(?)
@ 2020-03-11 16:40 ` Kalle Valo
-1 siblings, 0 replies; 4+ messages in thread
From: Kalle Valo @ 2020-03-11 16:40 UTC (permalink / raw)
To: Wen Gong; +Cc: ath10k, linux-wireless, wgong
Wen Gong <wgong@codeaurora.org> wrote:
> When use command to read values, it crashed.
>
> command:
> dd if=/sys/kernel/debug/ieee80211/phy0/ath10k/mem_value count=1 bs=4 skip=$((0x100233))
>
> It will call to ath10k_sdio_hif_diag_read with address = 0x4008cc and buf_len = 4.
>
> Then system crash:
> [ 1786.013258] Unable to handle kernel paging request at virtual address ffffffc00bd45000
> [ 1786.013273] Mem abort info:
> [ 1786.013281] ESR = 0x96000045
> [ 1786.013291] Exception class = DABT (current EL), IL = 32 bits
> [ 1786.013299] SET = 0, FnV = 0
> [ 1786.013307] EA = 0, S1PTW = 0
> [ 1786.013314] Data abort info:
> [ 1786.013322] ISV = 0, ISS = 0x00000045
> [ 1786.013330] CM = 0, WnR = 1
> [ 1786.013342] swapper pgtable: 4k pages, 39-bit VAs, pgdp = 000000008542a60e
> [ 1786.013350] [ffffffc00bd45000] pgd=0000000000000000, pud=0000000000000000
> [ 1786.013368] Internal error: Oops: 96000045 [#1] PREEMPT SMP
> [ 1786.013609] Process swapper/0 (pid: 0, stack limit = 0x0000000084b153c6)
> [ 1786.013623] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.86 #137
> [ 1786.013631] Hardware name: MediaTek krane sku176 board (DT)
> [ 1786.013643] pstate: 80000085 (Nzcv daIf -PAN -UAO)
> [ 1786.013662] pc : __memcpy+0x94/0x180
> [ 1786.013678] lr : swiotlb_tbl_unmap_single+0x84/0x150
> [ 1786.013686] sp : ffffff8008003c60
> [ 1786.013694] x29: ffffff8008003c90 x28: ffffffae96411f80
> [ 1786.013708] x27: ffffffae960d2018 x26: ffffff8019a4b9a8
> [ 1786.013721] x25: 0000000000000000 x24: 0000000000000001
> [ 1786.013734] x23: ffffffae96567000 x22: 00000000000051d4
> [ 1786.013747] x21: 0000000000000000 x20: 00000000fe6e9000
> [ 1786.013760] x19: 0000000000000004 x18: 0000000000000020
> [ 1786.013773] x17: 0000000000000001 x16: 0000000000000000
> [ 1786.013787] x15: 00000000ffffffff x14: 00000000000044c0
> [ 1786.013800] x13: 0000000000365ba4 x12: 0000000000000000
> [ 1786.013813] x11: 0000000000000001 x10: 00000037be6e9000
> [ 1786.013826] x9 : ffffffc940000000 x8 : 000000000bd45000
> [ 1786.013839] x7 : 0000000000000000 x6 : ffffffc00bd45000
> [ 1786.013852] x5 : 0000000000000000 x4 : 0000000000000000
> [ 1786.013865] x3 : 0000000000000c00 x2 : 0000000000000004
> [ 1786.013878] x1 : fffffff7be6e9004 x0 : ffffffc00bd45000
> [ 1786.013891] Call trace:
> [ 1786.013903] __memcpy+0x94/0x180
> [ 1786.013914] unmap_single+0x6c/0x84
> [ 1786.013925] swiotlb_unmap_sg_attrs+0x54/0x80
> [ 1786.013938] __swiotlb_unmap_sg_attrs+0x8c/0xa4
> [ 1786.013952] msdc_unprepare_data+0x6c/0x84
> [ 1786.013963] msdc_request_done+0x58/0x84
> [ 1786.013974] msdc_data_xfer_done+0x1a0/0x1c8
> [ 1786.013985] msdc_irq+0x12c/0x17c
> [ 1786.013996] __handle_irq_event_percpu+0xe4/0x250
> [ 1786.014006] handle_irq_event_percpu+0x28/0x68
> [ 1786.014015] handle_irq_event+0x48/0x78
> [ 1786.014026] handle_fasteoi_irq+0xd0/0x1a0
> [ 1786.014039] __handle_domain_irq+0x84/0xc4
> [ 1786.014050] gic_handle_irq+0x124/0x1a4
> [ 1786.014059] el1_irq+0xb0/0x128
> [ 1786.014072] cpuidle_enter_state+0x298/0x328
> [ 1786.014082] cpuidle_enter+0x30/0x40
> [ 1786.014094] do_idle+0x190/0x268
> [ 1786.014104] cpu_startup_entry+0x24/0x28
> [ 1786.014116] rest_init+0xd4/0xe0
> [ 1786.014126] start_kernel+0x30c/0x38c
> [ 1786.014139] Code: f8408423 f80084c3 36100062 b8404423 (b80044c3)
> [ 1786.014150] ---[ end trace 3b02ddb698ea69ee ]---
> [ 1786.015415] Kernel panic - not syncing: Fatal exception in interrupt
> [ 1786.015433] SMP: stopping secondary CPUs
> [ 1786.015447] Kernel Offset: 0x2e8d200000 from 0xffffff8008000000
> [ 1786.015458] CPU features: 0x0,2188200c
> [ 1786.015466] Memory Limit: none
>
> For sdio chip, it need the memory which is kmalloc, if it is
> vmalloc from ath10k_mem_value_read, then it have a memory error.
> kzalloc of ath10k_sdio_hif_diag_read32 is the correct type, so
> add kzalloc in ath10k_sdio_hif_diag_read to replace the buffer
> which is vmalloc from ath10k_mem_value_read.
>
> This patch only effect sdio chip.
>
> Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.
>
> Signed-off-by: Wen Gong <wgong@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Patch applied to ath-next branch of ath.git, thanks.
402f2992b4d6 ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
--
https://patchwork.kernel.org/patch/11381643/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-03-11 16:40 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-14 3:42 [PATCH] ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read Wen Gong
2020-02-14 3:42 ` Wen Gong
2020-03-11 16:40 ` Kalle Valo
2020-03-11 16:40 ` Kalle Valo
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.