From: Harman Kalra <hkalra@marvell.com>
To: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
Anatoly Burakov <anatoly.burakov@intel.com>
Subject: Re: [dpdk-dev] [EXT] Re: [PATCH v1 6/7] eal/interrupts: make interrupt handle structure opaque
Date: Mon, 4 Oct 2021 14:09:15 +0000 [thread overview]
Message-ID: <BN9PR18MB4204A7B334C9C593108557A3C5AE9@BN9PR18MB4204.namprd18.prod.outlook.com> (raw)
In-Reply-To: <20211003211619.47a5834e@sovereign>
Hi Dmitry,
Please find my comments inline.
> -----Original Message-----
> From: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
> Sent: Sunday, October 3, 2021 11:46 PM
> To: Harman Kalra <hkalra@marvell.com>
> Cc: dev@dpdk.org; Anatoly Burakov <anatoly.burakov@intel.com>
> Subject: [EXT] Re: [dpdk-dev] [PATCH v1 6/7] eal/interrupts: make interrupt
> handle structure opaque
>
> External Email
>
> ----------------------------------------------------------------------
> 2021-09-03 18:11 (UTC+0530), Harman Kalra:
> > [...]
> > @@ -31,11 +54,40 @@ struct rte_intr_handle
> *rte_intr_handle_instance_alloc(int size,
> > }
> >
> > for (i = 0; i < size; i++) {
> > + if (from_hugepage)
> > + intr_handle[i].efds = rte_zmalloc(NULL,
> > + RTE_MAX_RXTX_INTR_VEC_ID *
> sizeof(uint32_t), 0);
> > + else
> > + intr_handle[i].efds = calloc(1,
> > + RTE_MAX_RXTX_INTR_VEC_ID *
> sizeof(uint32_t));
> > + if (!intr_handle[i].efds) {
> > + RTE_LOG(ERR, EAL, "Fail to allocate event fd list\n");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > +
> > + if (from_hugepage)
> > + intr_handle[i].elist = rte_zmalloc(NULL,
> > + RTE_MAX_RXTX_INTR_VEC_ID *
> > + sizeof(struct rte_epoll_event), 0);
> > + else
> > + intr_handle[i].elist = calloc(1,
> > + RTE_MAX_RXTX_INTR_VEC_ID *
> > + sizeof(struct rte_epoll_event));
> > + if (!intr_handle[i].elist) {
> > + RTE_LOG(ERR, EAL, "fail to allocate event fd list\n");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > intr_handle[i].nb_intr = RTE_MAX_RXTX_INTR_VEC_ID;
> > intr_handle[i].alloc_from_hugepage = from_hugepage;
> > }
> >
> > return intr_handle;
> > +fail:
> > + free(intr_handle->efds);
> > + free(intr_handle);
> > + return NULL;
>
> This is incorrect if "from_hugepage" is set.
<HK> Ack, will fix it.
>
> > }
> >
> > struct rte_intr_handle *rte_intr_handle_instance_index_get(
> > @@ -73,12 +125,48 @@ int rte_intr_handle_instance_index_set(struct
> rte_intr_handle *intr_handle,
> > }
> >
> > intr_handle[index].fd = src->fd;
> > - intr_handle[index].vfio_dev_fd = src->vfio_dev_fd;
> > + intr_handle[index].dev_fd = src->dev_fd;
> > +
> > intr_handle[index].type = src->type;
> > intr_handle[index].max_intr = src->max_intr;
> > intr_handle[index].nb_efd = src->nb_efd;
> > intr_handle[index].efd_counter_size = src->efd_counter_size;
> >
> > + if (intr_handle[index].nb_intr != src->nb_intr) {
> > + if (src->alloc_from_hugepage)
> > + intr_handle[index].efds =
> > + rte_realloc(intr_handle[index].efds,
> > + src->nb_intr *
> > + sizeof(uint32_t), 0);
> > + else
> > + intr_handle[index].efds =
> > + realloc(intr_handle[index].efds,
> > + src->nb_intr * sizeof(uint32_t));
> > + if (intr_handle[index].efds == NULL) {
> > + RTE_LOG(ERR, EAL, "Failed to realloc the efds list");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > +
> > + if (src->alloc_from_hugepage)
> > + intr_handle[index].elist =
> > + rte_realloc(intr_handle[index].elist,
> > + src->nb_intr *
> > + sizeof(struct rte_epoll_event), 0);
> > + else
> > + intr_handle[index].elist =
> > + realloc(intr_handle[index].elist,
> > + src->nb_intr *
> > + sizeof(struct rte_epoll_event));
> > + if (intr_handle[index].elist == NULL) {
> > + RTE_LOG(ERR, EAL, "Failed to realloc the event list");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > +
> > + intr_handle[index].nb_intr = src->nb_intr;
> > + }
> > +
>
> This implementation leaves "intr_handle" in an invalid state and leaks
> memory on error paths.
<HK> Yes, I will get the reallocated pointer in a tmp variable and will update
(intr_handle[index].elist/efds only after all error paths are cleared.
>
> > memcpy(intr_handle[index].efds, src->efds, src->nb_intr);
> > memcpy(intr_handle[index].elist, src->elist, src->nb_intr);
> >
> > @@ -87,6 +175,45 @@ int rte_intr_handle_instance_index_set(struct
> rte_intr_handle *intr_handle,
> > return rte_errno;
> > }
> >
> > +int rte_intr_handle_event_list_update(struct rte_intr_handle
> *intr_handle,
> > + int size)
> > +{
> > + if (intr_handle == NULL) {
> > + RTE_LOG(ERR, EAL, "Interrupt instance unallocated\n");
> > + rte_errno = ENOTSUP;
> > + goto fail;
> > + }
> > +
> > + if (size == 0) {
> > + RTE_LOG(ERR, EAL, "Size can't be zero\n");
> > + rte_errno = EINVAL;
> > + goto fail;
> > + }
> > +
> > + intr_handle->efds = realloc(intr_handle->efds,
> > + size * sizeof(uint32_t));
> > + if (intr_handle->efds == NULL) {
> > + RTE_LOG(ERR, EAL, "Failed to realloc the efds list");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > +
> > + intr_handle->elist = realloc(intr_handle->elist,
> > + size * sizeof(struct rte_epoll_event));
> > + if (intr_handle->elist == NULL) {
> > + RTE_LOG(ERR, EAL, "Failed to realloc the event list");
> > + rte_errno = ENOMEM;
> > + goto fail;
> > + }
> > +
> > + intr_handle->nb_intr = size;
> > +
> > + return 0;
> > +fail:
> > + return rte_errno;
> > +}
> > +
> > +
>
> Same here.
<HK> Ack
>
> > [...]
> > diff --git a/lib/eal/include/rte_interrupts.h
> > b/lib/eal/include/rte_interrupts.h
> > index afc3262967..7dfb849eea 100644
> > --- a/lib/eal/include/rte_interrupts.h
> > +++ b/lib/eal/include/rte_interrupts.h
> > @@ -25,9 +25,29 @@ extern "C" {
> > /** Interrupt handle */
> > struct rte_intr_handle;
> >
> > -#define RTE_INTR_HANDLE_DEFAULT_SIZE 1
> > +#define RTE_MAX_RXTX_INTR_VEC_ID 512
> > +#define RTE_INTR_VEC_ZERO_OFFSET 0
> > +#define RTE_INTR_VEC_RXTX_OFFSET 1
> > +
> > +/**
> > + * The interrupt source type, e.g. UIO, VFIO, ALARM etc.
> > + */
> > +enum rte_intr_handle_type {
> > + RTE_INTR_HANDLE_UNKNOWN = 0, /**< generic unknown handle */
> > + RTE_INTR_HANDLE_UIO, /**< uio device handle */
> > + RTE_INTR_HANDLE_UIO_INTX, /**< uio generic handle */
> > + RTE_INTR_HANDLE_VFIO_LEGACY, /**< vfio device handle (legacy)
> */
> > + RTE_INTR_HANDLE_VFIO_MSI, /**< vfio device handle (MSI) */
> > + RTE_INTR_HANDLE_VFIO_MSIX, /**< vfio device handle (MSIX) */
> > + RTE_INTR_HANDLE_ALARM, /**< alarm handle */
> > + RTE_INTR_HANDLE_EXT, /**< external handler */
> > + RTE_INTR_HANDLE_VDEV, /**< virtual device */
> > + RTE_INTR_HANDLE_DEV_EVENT, /**< device event handle */
> > + RTE_INTR_HANDLE_VFIO_REQ, /**< VFIO request handle */
> > + RTE_INTR_HANDLE_MAX /**< count of elements */
>
> Enums shouldn't have a _MAX member, can we remove it?
<HK> I don't see RTE_INTR_HANDLE_MAX used at any place, I will remove it.
>
> > +};
> >
> > -#include "rte_eal_interrupts.h"
> > +#define RTE_INTR_HANDLE_DEFAULT_SIZE 1
>
> I find this constant more cluttering call sites than helpful.
> If a handle is allocated with a calloc-like function, plain 1 reads just fine.
Now since we are thinking of restricting rte_intr_handle_instance_alloc() to single
intr_handle allocation, I will remove this macro.
Thanks
Harman
next prev parent reply other threads:[~2021-10-04 14:09 UTC|newest]
Thread overview: 152+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-26 14:57 [dpdk-dev] [RFC 0/7] make rte_intr_handle internal Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 1/7] eal: interrupt handle API prototypes Harman Kalra
2021-08-31 15:52 ` Kinsella, Ray
2021-08-26 14:57 ` [dpdk-dev] [RFC 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-08-31 15:53 ` Kinsella, Ray
2021-08-26 14:57 ` [dpdk-dev] [RFC 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 5/7] drivers: remove direct access to interrupt handle fields Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-08-26 14:57 ` [dpdk-dev] [RFC 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 0/7] make rte_intr_handle internal Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 1/7] eal: interrupt handle API prototypes Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-09-28 15:46 ` David Marchand
2021-10-04 8:51 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-04 9:57 ` David Marchand
2021-10-12 15:22 ` Thomas Monjalon
2021-10-13 17:54 ` Harman Kalra
2021-10-13 17:57 ` Harman Kalra
2021-10-13 18:52 ` Thomas Monjalon
2021-10-14 8:22 ` Thomas Monjalon
2021-10-14 9:31 ` Harman Kalra
2021-10-14 9:37 ` David Marchand
2021-10-14 9:41 ` Thomas Monjalon
2021-10-14 10:31 ` Harman Kalra
2021-10-14 10:35 ` Thomas Monjalon
2021-10-14 10:44 ` Harman Kalra
2021-10-14 12:04 ` Thomas Monjalon
2021-10-14 10:25 ` Dmitry Kozlyuk
2021-10-03 18:05 ` [dpdk-dev] " Dmitry Kozlyuk
2021-10-04 10:37 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-04 11:18 ` Dmitry Kozlyuk
2021-10-04 14:03 ` Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-09-03 12:40 ` [dpdk-dev] [PATCH v1 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-09-03 12:41 ` [dpdk-dev] [PATCH v1 5/7] drivers: remove direct access to interrupt handle fields Harman Kalra
2021-09-03 12:41 ` [dpdk-dev] [PATCH v1 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-03 18:16 ` Dmitry Kozlyuk
2021-10-04 14:09 ` Harman Kalra [this message]
2021-09-03 12:41 ` [dpdk-dev] [PATCH v1 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-09-15 14:13 ` [dpdk-dev] [PATCH v1 0/7] make rte_intr_handle internal Harman Kalra
2021-09-23 8:20 ` David Marchand
2021-10-05 12:14 ` [dpdk-dev] [PATCH v2 0/6] " Harman Kalra
2021-10-05 12:14 ` [dpdk-dev] [PATCH v2 1/6] eal/interrupts: implement get set APIs Harman Kalra
2021-10-14 0:58 ` Dmitry Kozlyuk
2021-10-14 17:15 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-14 17:53 ` Dmitry Kozlyuk
2021-10-15 7:53 ` Thomas Monjalon
2021-10-14 7:31 ` [dpdk-dev] " David Marchand
2021-10-05 12:14 ` [dpdk-dev] [PATCH v2 2/6] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-14 0:59 ` Dmitry Kozlyuk
2021-10-14 17:31 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-14 17:53 ` Dmitry Kozlyuk
2021-10-05 12:14 ` [dpdk-dev] [PATCH v2 3/6] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-05 12:15 ` [dpdk-dev] [PATCH v2 4/6] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-05 12:15 ` [dpdk-dev] [PATCH v2 5/6] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-05 12:15 ` [dpdk-dev] [PATCH v2 6/6] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-05 16:07 ` [dpdk-dev] [RFC 0/7] make rte_intr_handle internal Stephen Hemminger
2021-10-07 10:57 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 " Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 1/7] malloc: introduce malloc is ready API Harman Kalra
2021-10-19 15:53 ` Thomas Monjalon
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-10-18 22:07 ` Dmitry Kozlyuk
2021-10-19 8:50 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 18:44 ` Harman Kalra
2021-10-18 22:56 ` [dpdk-dev] " Stephen Hemminger
2021-10-19 8:32 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 15:58 ` Thomas Monjalon
2021-10-20 15:30 ` Dmitry Kozlyuk
2021-10-21 9:16 ` Harman Kalra
2021-10-21 12:33 ` Dmitry Kozlyuk
2021-10-21 13:32 ` David Marchand
2021-10-21 16:05 ` Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 5/7] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-18 19:37 ` [dpdk-dev] [PATCH v3 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 0/7] make rte_intr_handle internal Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 1/7] malloc: introduce malloc is ready API Harman Kalra
2021-10-19 22:01 ` Dmitry Kozlyuk
2021-10-19 22:04 ` Dmitry Kozlyuk
2021-10-20 9:01 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 2/7] eal/interrupts: implement get set APIs Harman Kalra
2021-10-20 6:14 ` David Marchand
2021-10-20 14:29 ` Dmitry Kozlyuk
2021-10-20 16:15 ` Dmitry Kozlyuk
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 3/7] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-19 21:27 ` Dmitry Kozlyuk
2021-10-20 9:25 ` [dpdk-dev] [EXT] " Harman Kalra
2021-10-20 9:52 ` Dmitry Kozlyuk
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 4/7] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 5/7] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-20 1:57 ` Hyong Youb Kim (hyonkim)
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 6/7] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-19 18:35 ` [dpdk-dev] [PATCH v4 7/7] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-19 21:39 ` Dmitry Kozlyuk
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 0/6] make rte_intr_handle internal Harman Kalra
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 1/6] eal/interrupts: implement get set APIs Harman Kalra
2021-10-22 23:33 ` Dmitry Kozlyuk
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 2/6] eal/interrupts: avoid direct access to interrupt handle Harman Kalra
2021-10-22 23:33 ` Dmitry Kozlyuk
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 3/6] test/interrupt: apply get set interrupt handle APIs Harman Kalra
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 4/6] drivers: remove direct access to interrupt handle Harman Kalra
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 5/6] eal/interrupts: make interrupt handle structure opaque Harman Kalra
2021-10-22 23:33 ` Dmitry Kozlyuk
2021-10-22 20:49 ` [dpdk-dev] [PATCH v5 6/6] eal/alarm: introduce alarm fini routine Harman Kalra
2021-10-22 23:33 ` Dmitry Kozlyuk
2021-10-22 23:37 ` Dmitry Kozlyuk
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 0/9] make rte_intr_handle internal David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 1/9] interrupts: add allocator and accessors David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25 6:57 ` David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 3/9] test/interrupts: " David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 4/9] alarm: " David Marchand
2021-10-25 10:49 ` Dmitry Kozlyuk
2021-10-25 11:09 ` David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 5/9] lib: " David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 6/9] drivers: " David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-24 20:04 ` [dpdk-dev] [PATCH v6 9/9] interrupts: extend event list David Marchand
2021-10-25 10:49 ` Dmitry Kozlyuk
2021-10-25 11:11 ` David Marchand
2021-10-25 13:04 ` [dpdk-dev] [PATCH v5 0/6] make rte_intr_handle internal Raslan Darawsheh
2021-10-25 13:09 ` David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 0/9] " David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 1/9] interrupts: add allocator and accessors David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 3/9] test/interrupts: " David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 4/9] alarm: " David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 5/9] lib: " David Marchand
2021-10-28 6:14 ` Jiang, YuX
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 6/9] drivers: " David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-25 13:34 ` [dpdk-dev] [PATCH v7 9/9] interrupts: extend event list David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 0/9] make rte_intr_handle internal David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 1/9] interrupts: add allocator and accessors David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 2/9] interrupts: remove direct access to interrupt handle David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 3/9] test/interrupts: " David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 4/9] alarm: " David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 5/9] lib: " David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 6/9] drivers: " David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 7/9] interrupts: make interrupt handle structure opaque David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 8/9] interrupts: rename device specific file descriptor David Marchand
2021-10-25 14:27 ` [dpdk-dev] [PATCH v8 9/9] interrupts: extend event list David Marchand
2021-10-28 15:58 ` Ji, Kai
2021-10-28 17:16 ` David Marchand
2021-10-25 14:32 ` [dpdk-dev] [PATCH v8 0/9] make rte_intr_handle internal Raslan Darawsheh
2021-10-25 19:24 ` David Marchand
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