--- /dev/null
+From 2e7be9db125a0bf940c5d65eb5c40d8700f738b5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?D=C4=81vis=20Mos=C4=81ns?= <davispuh@gmail.com>
+Date: Sat, 5 Feb 2022 20:48:23 +0200
+Subject: btrfs: send: in case of IO error log it
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Dāvis Mosāns <davispuh@gmail.com>
+
+commit 2e7be9db125a0bf940c5d65eb5c40d8700f738b5 upstream.
+
+Currently if we get IO error while doing send then we abort without
+logging information about which file caused issue. So log it to help
+with debugging.
+
+CC: stable@vger.kernel.org # 4.9+
+Signed-off-by: Dāvis Mosāns <davispuh@gmail.com>
+Reviewed-by: David Sterba <dsterba@suse.com>
+Signed-off-by: David Sterba <dsterba@suse.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/btrfs/send.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/fs/btrfs/send.c
++++ b/fs/btrfs/send.c
+@@ -4956,6 +4956,10 @@ static ssize_t fill_read_buf(struct send
+ lock_page(page);
+ if (!PageUptodate(page)) {
+ unlock_page(page);
++ btrfs_err(fs_info,
++ "send: IO error at offset %llu for inode %llu root %llu",
++ page_offset(page), sctx->cur_ino,
++ sctx->send_root->root_key.objectid);
+ put_page(page);
+ ret = -EIO;
+ break;
--- /dev/null
+From b7d6f44a0fa716a82969725516dc0b16bc7cd514 Mon Sep 17 00:00:00 2001
+From: John David Anglin <dave.anglin@bell.net>
+Date: Wed, 26 Jan 2022 20:39:05 +0000
+Subject: parisc: Fix data TLB miss in sba_unmap_sg
+
+From: John David Anglin <dave.anglin@bell.net>
+
+commit b7d6f44a0fa716a82969725516dc0b16bc7cd514 upstream.
+
+Rolf Eike Beer reported the following bug:
+
+[1274934.746891] Bad Address (null pointer deref?): Code=15 (Data TLB miss fault) at addr 0000004140000018
+[1274934.746891] CPU: 3 PID: 5549 Comm: cmake Not tainted 5.15.4-gentoo-parisc64 #4
+[1274934.746891] Hardware name: 9000/785/C8000
+[1274934.746891]
+[1274934.746891] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
+[1274934.746891] PSW: 00001000000001001111111000001110 Not tainted
+[1274934.746891] r00-03 000000ff0804fe0e 0000000040bc9bc0 00000000406760e4 0000004140000000
+[1274934.746891] r04-07 0000000040b693c0 0000004140000000 000000004a2b08b0 0000000000000001
+[1274934.746891] r08-11 0000000041f98810 0000000000000000 000000004a0a7000 0000000000000001
+[1274934.746891] r12-15 0000000040bddbc0 0000000040c0cbc0 0000000040bddbc0 0000000040bddbc0
+[1274934.746891] r16-19 0000000040bde3c0 0000000040bddbc0 0000000040bde3c0 0000000000000007
+[1274934.746891] r20-23 0000000000000006 000000004a368950 0000000000000000 0000000000000001
+[1274934.746891] r24-27 0000000000001fff 000000000800000e 000000004a1710f0 0000000040b693c0
+[1274934.746891] r28-31 0000000000000001 0000000041f988b0 0000000041f98840 000000004a171118
+[1274934.746891] sr00-03 00000000066e5800 0000000000000000 0000000000000000 00000000066e5800
+[1274934.746891] sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
+[1274934.746891]
+[1274934.746891] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406760e8 00000000406760ec
+[1274934.746891] IIR: 48780030 ISR: 0000000000000000 IOR: 0000004140000018
+[1274934.746891] CPU: 3 CR30: 00000040e3a9c000 CR31: ffffffffffffffff
+[1274934.746891] ORIG_R28: 0000000040acdd58
+[1274934.746891] IAOQ[0]: sba_unmap_sg+0xb0/0x118
+[1274934.746891] IAOQ[1]: sba_unmap_sg+0xb4/0x118
+[1274934.746891] RP(r2): sba_unmap_sg+0xac/0x118
+[1274934.746891] Backtrace:
+[1274934.746891] [<00000000402740cc>] dma_unmap_sg_attrs+0x6c/0x70
+[1274934.746891] [<000000004074d6bc>] scsi_dma_unmap+0x54/0x60
+[1274934.746891] [<00000000407a3488>] mptscsih_io_done+0x150/0xd70
+[1274934.746891] [<0000000040798600>] mpt_interrupt+0x168/0xa68
+[1274934.746891] [<0000000040255a48>] __handle_irq_event_percpu+0xc8/0x278
+[1274934.746891] [<0000000040255c34>] handle_irq_event_percpu+0x3c/0xd8
+[1274934.746891] [<000000004025ecb4>] handle_percpu_irq+0xb4/0xf0
+[1274934.746891] [<00000000402548e0>] generic_handle_irq+0x50/0x70
+[1274934.746891] [<000000004019a254>] call_on_stack+0x18/0x24
+[1274934.746891]
+[1274934.746891] Kernel panic - not syncing: Bad Address (null pointer deref?)
+
+The bug is caused by overrunning the sglist and incorrectly testing
+sg_dma_len(sglist) before nents. Normally this doesn't cause a crash,
+but in this case sglist crossed a page boundary. This occurs in the
+following code:
+
+ while (sg_dma_len(sglist) && nents--) {
+
+The fix is simply to test nents first and move the decrement of nents
+into the loop.
+
+Reported-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
+Signed-off-by: John David Anglin <dave.anglin@bell.net>
+Cc: stable@vger.kernel.org
+Signed-off-by: Helge Deller <deller@gmx.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/parisc/sba_iommu.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/parisc/sba_iommu.c
++++ b/drivers/parisc/sba_iommu.c
+@@ -1063,7 +1063,7 @@ sba_unmap_sg(struct device *dev, struct
+ spin_unlock_irqrestore(&ioc->res_lock, flags);
+ #endif
+
+- while (sg_dma_len(sglist) && nents--) {
++ while (nents && sg_dma_len(sglist)) {
+
+ sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
+ direction, 0);
+@@ -1072,6 +1072,7 @@ sba_unmap_sg(struct device *dev, struct
+ ioc->usingle_calls--; /* kluge since call is unmap_sg() */
+ #endif
+ ++sglist;
++ nents--;
+ }
+
+ DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
--- /dev/null
+From d7da660cab47183cded65e11b64497d0f56c6edf Mon Sep 17 00:00:00 2001
+From: John David Anglin <dave.anglin@bell.net>
+Date: Thu, 27 Jan 2022 22:33:41 +0000
+Subject: parisc: Fix sglist access in ccio-dma.c
+
+From: John David Anglin <dave.anglin@bell.net>
+
+commit d7da660cab47183cded65e11b64497d0f56c6edf upstream.
+
+This patch implements the same bug fix to ccio-dma.c as to sba_iommu.c.
+It ensures that only the allocated entries of the sglist are accessed.
+
+Signed-off-by: John David Anglin <dave.anglin@bell.net>
+Cc: stable@vger.kernel.org
+Signed-off-by: Helge Deller <deller@gmx.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/parisc/ccio-dma.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/parisc/ccio-dma.c
++++ b/drivers/parisc/ccio-dma.c
+@@ -1010,7 +1010,7 @@ ccio_unmap_sg(struct device *dev, struct
+ ioc->usg_calls++;
+ #endif
+
+- while(sg_dma_len(sglist) && nents--) {
++ while (nents && sg_dma_len(sglist)) {
+
+ #ifdef CCIO_COLLECT_STATS
+ ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
+@@ -1018,6 +1018,7 @@ ccio_unmap_sg(struct device *dev, struct
+ ccio_unmap_page(dev, sg_dma_address(sglist),
+ sg_dma_len(sglist), direction, 0);
+ ++sglist;
++ nents--;
+ }
+
+ DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
--- /dev/null
+From 6e8793674bb0d1135ca0e5c9f7e16fecbf815926 Mon Sep 17 00:00:00 2001
+From: Randy Dunlap <rdunlap@infradead.org>
+Date: Mon, 14 Feb 2022 10:00:19 -0800
+Subject: serial: parisc: GSC: fix build when IOSAPIC is not set
+
+From: Randy Dunlap <rdunlap@infradead.org>
+
+commit 6e8793674bb0d1135ca0e5c9f7e16fecbf815926 upstream.
+
+There is a build error when using a kernel .config file from
+'kernel test robot' for a different build problem:
+
+hppa64-linux-ld: drivers/tty/serial/8250/8250_gsc.o: in function `.LC3':
+(.data.rel.ro+0x18): undefined reference to `iosapic_serial_irq'
+
+when:
+ CONFIG_GSC=y
+ CONFIG_SERIO_GSCPS2=y
+ CONFIG_SERIAL_8250_GSC=y
+ CONFIG_PCI is not set
+ and hence PCI_LBA is not set.
+ IOSAPIC depends on PCI_LBA, so IOSAPIC is not set/enabled.
+
+Make the use of iosapic_serial_irq() conditional to fix the build error.
+
+Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
+Reported-by: kernel test robot <lkp@intel.com>
+Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
+Cc: Helge Deller <deller@gmx.de>
+Cc: linux-parisc@vger.kernel.org
+Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Cc: linux-serial@vger.kernel.org
+Cc: Jiri Slaby <jirislaby@kernel.org>
+Cc: Johan Hovold <johan@kernel.org>
+Suggested-by: Helge Deller <deller@gmx.de>
+Signed-off-by: Helge Deller <deller@gmx.de>
+Cc: stable@vger.kernel.org
+Signed-off-by: Helge Deller <deller@gmx.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/tty/serial/8250/8250_gsc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/tty/serial/8250/8250_gsc.c
++++ b/drivers/tty/serial/8250/8250_gsc.c
+@@ -26,7 +26,7 @@ static int __init serial_init_chip(struc
+ unsigned long address;
+ int err;
+
+-#ifdef CONFIG_64BIT
++#if defined(CONFIG_64BIT) && defined(CONFIG_IOSAPIC)
+ if (!dev->irq && (dev->id.sversion == 0xad))
+ dev->irq = iosapic_serial_irq(dev);
+ #endif
makefile.extrawarn-move-wunaligned-access-to-w-1.patch
net-usb-ax88179_178a-fix-out-of-bounds-accesses-in-rx-fixup.patch
+serial-parisc-gsc-fix-build-when-iosapic-is-not-set.patch
+parisc-fix-data-tlb-miss-in-sba_unmap_sg.patch
+parisc-fix-sglist-access-in-ccio-dma.c.patch
+btrfs-send-in-case-of-io-error-log-it.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
